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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 1785. Отображено 196.
20-10-2008 дата публикации

СПОСОБ ПОЛУЧЕНИЯ 3-МЕТИЛТИОПРОПАНАЛЯ

Номер: RU2336266C2

FIELD: chemistry. SUBSTANCE: method of obtaining 3-methyltiopropanal includes interaction of methylmercaptane with acrolein in presence of catalyst, containing organic base and organic acid, organic acid representing N-alkylmorpholin. EFFECT: method improvement. 15 cl, 2 tbl, 4 ex, 2 dwg ÐÎÑÑÈÉÑÊÀß ÔÅÄÅÐÀÖÈß RU (19) (11) 2 336 266 (13) C2 (51) ÌÏÊ C07C 319/18 C07C 323/22 (2006.01) (2006.01) ÔÅÄÅÐÀËÜÍÀß ÑËÓÆÁÀ ÏÎ ÈÍÒÅËËÅÊÒÓÀËÜÍÎÉ ÑÎÁÑÒÂÅÍÍÎÑÒÈ, ÏÀÒÅÍÒÀÌ È ÒÎÂÀÐÍÛÌ ÇÍÀÊÀÌ (12) ÎÏÈÑÀÍÈÅ ÈÇÎÁÐÅÒÅÍÈß Ê ÏÀÒÅÍÒÓ (21), (22) Çà âêà: 2005105040/04, 14.10.2003 (72) Àâòîð(û): ÐÝÉ Ïàòðèê (FR) (24) Äàòà íà÷àëà îòñ÷åòà ñðîêà äåéñòâè ïàòåíòà: 14.10.2003 (73) Ïàòåíòîîáëàäàòåëü(è): ÀÄÈÑÑÅÎ ÀÉÝËÅÍÄ ËÈÌÈÒÅÄ (IE) R U (30) Êîíâåíöèîííûé ïðèîðèòåò: 24.10.2002 EP 02356211.9 (43) Äàòà ïóáëèêàöèè çà âêè: 27.10.2005 (45) Îïóáëèêîâàíî: 20.10.2008 Áþë. ¹ 29 2 3 3 6 2 6 6 (56) Ñïèñîê äîêóìåíòîâ, öèòèðîâàííûõ â îò÷åòå î ïîèñêå: WO 96/40631, À1, 19.12.1996. WO 97/00858, A1, 09.01.1997. US 6031138, 29.02.2000. SU 691086, 08.01.1979. (85) Äàòà ïåðåâîäà çà âêè PCT íà íàöèîíàëüíóþ ôàçó: 30.03.2005 Àäðåñ äë ïåðåïèñêè: 191036, Ñàíêò-Ïåòåðáóðã, à/ 24, "ÍÅÂÈÍÏÀÒ", ïàò.ïîâ. À.Â.Ïîëèêàðïîâó (54) ÑÏÎÑÎÁ ÏÎËÓ×ÅÍÈß 3-ÌÅÒÈËÒÈÎÏÐÎÏÀÍÀËß (57) Ðåôåðàò: Íàñòî ùåå èçîáðåòåíèå îòíîñèòñ ê ñïîñîáó ïîëó÷åíè 3-ìåòèëòèîïðîïàíàë , âêëþ÷àþùåìó âçàèìîäåéñòâèå ìåòèëìåðêàïòàíà ñ àêðîëåèíîì â ïðèñóòñòâèè êàòàëèçàòîðà, ñîäåðæàùåãî îðãàíè÷åñêîå îñíîâàíèå è îðãàíè÷åñêóþ êèñëîòó, ïðè÷åì îðãàíè÷åñêîå îñíîâàíèå ïðåäñòàâë åò ñîáîé N-àëêèëìîðôîëèí. 2 í. è 13 ç.ï. ô-ëû, 2 èë., 2 òàáë. R U 2 3 3 6 2 6 6 (87) Ïóáëèêàöè PCT: WO 2004/037774 (06.05.2004) C 2 C 2 (86) Çà âêà PCT: IB 03/04557 (14.10.2003) Ñòðàíèöà: 1 RU RUSSIAN FEDERATION RU (19) (11) 2 336 266 (13) C2 (51) Int. Cl. C07C 319/18 C07C 323/22 (2006.01) (2006.01) FEDERAL SERVICE FOR INTELLECTUAL PROPERTY, PATENTS AND TRADEMARKS (12) ABSTRACT OF INVENTION (21), (22) Application: 2005105040/04, 14.10.2003 (72) Inventor(s): REhJ Patrik (FR) (24) Effective date for property rights: 14 ...

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20-12-2016 дата публикации

СПОСОБ ПОЛУЧЕНИЯ α-[(ПЕНТАН-2,4-ДИОН-3-ИЛ)МЕТОКСИ]-ω-[(ПЕНТАН-2,4-ДИОН-3-ИЛ)МЕТИЛСУЛЬФАНИЛ]АЛКАНОВ

Номер: RU2605450C2

Изобретение относится к способу получения α-[(пентан-2,4-дион-3-ил)метокси]-ω-[(пентан-2,4-дион-3-ил)метилсульфанил]алканов формулы (1)Сущность способа заключается во взаимодействии формальдегида с α,ω-меркаптоалканолом общей формулы HO-(CH)-SH (где n=2-4) в течение 30 мин с последующим добавлением ацетилацетона и катализатора NiCl·6HO при мольном соотношении CHO:α,ω-меркаптоалканол:ацетилацетон:NiCl·6HO = 2:1:2:(0.03-0.07) в смеси растворителей CHCl:CHOH (1:1, об.) при комнатной температуре (~20°С) и атмосферном давлении в течение 6-8 ч. Получаемые соединения могут найти применение в качестве селективных комплексонов металлов для супрамолекулярных систем и биологически активных веществ.1 табл., 1 пр.

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20-06-2024 дата публикации

АГЕНТ ДЛЯ ИНИЦИИРОВАНИЯ РЕАКЦИИ РАДИКАЛЬНОГО ПРИСОЕДИНЕНИЯ И СПОСОБ ЕГО ПРИМЕНЕНИЯ

Номер: RU2821324C2

Изобретение относится к способу получения соединения формулы (I) , где X выбран из S, Se и O; R1 выбран из Н, (C1-C6)-алкильных групп, (C6-C22)-арильных групп и (C1-C6)-алкил(C6-C22)-арильных групп; R2 выбран из H, OH, NR4R5, NHCOR4, OCOR4, где R4 и R5 одинаковые или разные и выбраны из H, (C1-C6)-алкильных групп, (C6-C22)-арильных групп, (C1-C6)-алкил(C6-C22)-арильных групп и защитных групп; R3 выбран из OH, CH2OH, COOH, COOR6, где R6 выбран из (C1-C6)-алкила, CN, CONR4R5, где R4 и R5 имеют значения, указанные выше, и COZ, где Z представляет собой галогенид; причем указанный способ включает реакцию соединения формулы (II) , где X выбран из S, Se и O; R1' выбран из H, (C1-C6)-алкильных, (C6-C22)-арильных, (C1-C6)-алкил(C6-C22)-арильных, тиольных, тио(C1-C6)-алкильных, тио(C6-C22)-арильных, тио(C1-C6)-алкил(C6-C22)-арильных, селенольных, селено(C1-C6)-алкильных, селено(C6-C22)-арильных и селен(C1-C6)-алкил(C6-C22)-арильных групп, и R2’ выбран из Н, (C1-C6)-алкильных групп, (C6-C22)-арильных ...

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27-08-2001 дата публикации

СПОСОБ ПОЛУЧЕНИЯ 3-(МЕТИЛТИО)ПРОПАНАЛЯ

Номер: RU2172734C2
Автор: Юнг ХСЮ (US)

Изобретение относится к способу непрерывного получения 3-(метилтио)пропаналя. Согласно этому способу осуществляют контактирование жидкой реакционной смеси с потоком газообразного акролеинового сырья в зоне газожидкостного контактирования. Эта реакционная смесь включает 3-(метилтио)пропаналь и катализатор взаимодействия между метилмеркаптаном и акролеином. Поток газообразного акролеинового сырья включает пары акролеина и несконденсируемый газ. Акролеин переходит из потока акролеинового сырья в реакционную смесь. Метилмеркаптан вводят в реакционную смесь, в которой он взаимодействует с акролеином с образованием жидкого реакционного продукта, содержащего 3-(метилтио)пропаналь. Несконденсируемый газ отделяют от жидкого реакционного продукта. Этот реакционный продукт разделяют на фракцию продукта и циркуляционную фракцию, возвращаемую в зону газожидкостного контактирования. Настоящий способ позволяет получить целевой продукт не требующий дальнейшей очистки при применении его для получения метионина ...

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10-04-2005 дата публикации

СПОСОБ ПОЛУЧЕНИЯ 3-МЕТИЛТИОПРОПАНАЛЯ

Номер: RU2003128651A
Принадлежит:

... 1. Способ получения 3-метилтиопропаналя, включающий взаимодействие акролеина с метилмеркаптаном путем подачи в реакционную систему акролеина и метилмеркаптана одновременно или последовательно по отношению к кислотному соединению и основному соединению, где основное соединение используют в количестве, приблизительно равном 0,3 моля или менее на один моль кислотного соединения. 2. Способ по п.1, где акролеин и метилмеркаптан подают в реакционную систему вместе с кислотным соединением и основным соединением. 3. Способ по п.2, где кислотное соединение и основное соединение предварительно смешивают друг с другом перед подачей в реакционную систему. 4. Способ по любому одному из пп.1-3, где основное соединение используют в количестве в диапазоне от 0,05 до приблизительно 0,3 моль на один моль кислотного соединения. 5. Способ по п.4, где основное соединение используют в количестве в диапазоне от 0,1 до приблизительно 0,25 моль на один моль кислотного соединения.

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15-05-2008 дата публикации

PROCEDURE FOR THE CLEANING OF ACROLEIN

Номер: AT0000395319T
Принадлежит:

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15-10-2002 дата публикации

PROCEDURE FOR THE PRODUCTION OF CHIRALEN ALPHA HYDROXY ACIDS

Номер: AT0017482001A
Автор:
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26-05-2003 дата публикации

VERFAHREN ZUR HERSTELLUNG VON CHIRALEN ALPHA-HYDROXYCARBONSÄUREN

Номер: AT0000410545B
Автор:
Принадлежит:

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15-10-1994 дата публикации

5-SUBSTITUIERTE AMINOPHENOLE.

Номер: AT0000112554T
Принадлежит:

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05-02-1981 дата публикации

MAMMALIAN COLLAGENASE

Номер: AU0005885080A
Принадлежит:

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22-01-1987 дата публикации

REACTION PRODUCT OF POLYTHIOL AND UNSATURATED CARBOXYLIC ACID

Номер: AU0005938286A
Принадлежит:

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06-06-2013 дата публикации

Sulfur containing fluoroalkyl amines and isocyanates

Номер: AU2008334034B2
Принадлежит:

The present invention provides fluoroalkyl amines represented by the formula ...

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22-12-2003 дата публикации

Process and apparatus for catalytic distillations

Номер: AU2003239142A8
Принадлежит:

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14-04-1994 дата публикации

Cytotoxic bicyclo(7.3.1)tridec-4-ene-2,6-diyne compounds and process for the preparation thereof

Номер: AU0000648073B2
Принадлежит:

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17-12-1998 дата публикации

Process for the preparation of 3-(methylthio)propanal

Номер: AU0000699841B2
Принадлежит:

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14-08-1996 дата публикации

Method for the preparation of substituted quinones and hydroquinones

Номер: AU0004488996A
Принадлежит:

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07-05-2003 дата публикации

PROCESS FOR THE PREPARATION OF CHIRAL ALPHA-HYDROXYCARBOXYLIC ACIDS

Номер: CA0002411218A1
Принадлежит:

A process for the preparation of chiral a-hydroxycarboxylic acids of the formula in which R1 is a C1-C2-alkyl radical optionally substituted by halogen atoms and R2 is a C2-C3-alkyl radical optionally substituted by halogen atoms, from a compound of the formula in which R1 is as defined above, R2' is a C2-C3-alkylene radical optionally substituted by halogen atoms, m is 0 or 1 and R is an optionally substituted alkyl radical, an aryl radical, heteroaryl radical or a heterocyclyl radical and X can be oxygen, sulfur, sulfinyl, sulfonyl, imino, C1-C6-alkylimino, xanthate, silyl, or, if m is equal to 0, halogen, which is reacted in the presence of a cyanide group donor to give the corresponding (R)- or (S)-cyanohydrin or its racemate of the formula then is converted by means of acidic hydrolysis into an acid of the formula or its racemate, and by cleavage of the group of the formula (R)m-X (V), where a resolution is optionally first carried out, the desired chiral a-hydroxycarboxylic ...

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17-12-2013 дата публикации

IMPROVED PROCESS FOR THE ADDITION OF THIOLATES TO ALPHA, BETA-UNSATURATED CARBONYL OR SULFONYL COMPOUNDS

Номер: CA0002733544C
Принадлежит: DOW AGROSCIENCES LLC

Alkylthio substituted aldehydes, ketones, esters and sulfones of formula I: (see formula I) are prepared by reacting .alpha.,.beta.-unsaturated carbonyl and sulfonyl compounds of formula II: (see formula II) with a sodium or potassium thiolate of formula III: R5S-Na+ or K+ (III) in the presence of an alkane carboxylic acid and water.

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01-01-1000 дата публикации

PROCEDE POUR LE TRAITEMENT OLEOFUGE, HYDROFUGE ET SOIL-RELEASE DES MATIERES TEXTILES.

Номер: CH0000613331B
Принадлежит:

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15-12-1976 дата публикации

Номер: CH0000582665A5
Автор:

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30-06-1972 дата публикации

Synthetic p-menthane-8-thiol-3-one

Номер: CH0000524581A

Synthetic p-menthane-8-thiol-3-one. Title cpd. of formula: is prepd. by treating pulegone or isoopulegone with H2S in the presence of base and in anhydrous conditions. The product contains no components found in the essential oil of buccu leaf, although having the same characteristics, and is thus used as synthetic blackcurrant odour in foodstuffs.

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15-11-1972 дата публикации

New mercapto-or alkylthio terpnoids

Номер: CH0000530459A

New mercapto- or alkylthio terpenoids. Cpds. of formula (I): where R' is H or with R4 is C-C,R2 is H or with R6 is dimethyl-methylene, or when R6 is isopropyl forms C-C with R5; R3 is H or with R6 forms dimethylmethylene; R4 is H or with R' is C-C; R5 is H or when R6 is isopropyl forms C-C with R2; R6 is isopropyl, or with R2 or R3 is dimethylmethylene; X is C=C; m is 0-2; Y is oxo attached to a primary or secondary C atom; Z is SH, lower alkylthio in beta posn. relative to -CO (with the exception of p-menthane 8-thio-3-one) are prepd. by reacting the non-Z substd. form of (1) where m is 1-3 and C=C of X are alpha,beta w.r.t. the -C=O but not pulegone or isopulegone when Z is SH with HZ in the presence of base and anhydrous conditions. Used to improve aromatic note of foodstuffs, in perfumes, detergents, cosmetics etc.

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15-05-1979 дата публикации

Номер: CH0000610882A5
Принадлежит: RHONE POULENC IND, RHONE-POULENC INDUSTRIES

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28-09-1979 дата публикации

Номер: CH0000613331A
Принадлежит:

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15-08-1977 дата публикации

Номер: CH0000590333A5
Автор:

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30-04-1980 дата публикации

[...][...] LA [...] DE [...][...], [...] ET [...].

Номер: CH0000616919A5

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30-06-2005 дата публикации

СПОСОБ ПОЛУЧЕНИЯ ФЕНИЛПИРАЗОЛЬНЫХ СОЕДИНЕНИЙ

Номер: EA0200500158A1
Принадлежит:

Способ получения соединения (III), который заключается во взаимодействии соединения общей формулы (V) с дицианоацетиленом (IV), упомянутую реакцию проводят в присутствии воды где R выбран из CF3 или C1-C6 алкила и M означает серебро или щелочной или щелочно-земельный металл. Международная заявка была опубликована вместе с отчетом о международном поиске.

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10-04-2007 дата публикации

A PROCESS FOR THE PRODUCTION OF 3-METHYLTHIOPROPANAL AND A PROCESS FOR THE PRODUCTION OF 2-HYDROXY-4-(METHYLTHIO)BUTANENITRILE

Номер: UA0000078613C2
Автор:
Принадлежит:

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16-02-2018 дата публикации

For preparing storage-stable 3 - methylthio propanal

Номер: CN0104230771B
Автор:
Принадлежит:

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02-12-1977 дата публикации

MANUFACTORING PROCESS OF ALDEHYDE BETA-METHYLTHIOPROPIONIQUE

Номер: FR0002314917B1
Автор:
Принадлежит:

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25-06-1971 дата публикации

MERCAPTO-SUBSTITUTED TERPENOID

Номер: FR0002061637A1
Автор:
Принадлежит:

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15-08-2003 дата публикации

PROCESS OF PURIFICATION OF ACROLEIN

Номер: FR0002835831A1
Принадлежит:

La présente invention a donc pour objet un procédé continu de purification de l'acroléine dans lequel : - on alimente une solution aqueuse d'acroléine dépourvue de gaz difficilement condensable, dans une colonne de distillation équipée à sa base d'au moins un bouilleur et sa tête d'au moins un condenseur, on soutire à la base de la colonne de distillation un mélange comprenant essentiellement de l'eau, - on soutire en tête de la colonne de distillation un mélange comprenant essentiellement de l'acroléine et de l'eau, - on refroidi, dans le condenseur, le mélange soutiré en tête de colonne de distillation, à température permettant d'obtenir d'une part, un condensât aqueux, et d'autre part, une quantité substantielle d'un mélange gazeux riche en acroléine, et - on isole de l'acroléine purifiée dans le mélange gazeux riche en acroléine.

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15-04-2011 дата публикации

NEW METHOD OF PREPARATION OF POLYOLS BY THIOLISATION AND PRODUCTS AS OBTAINED

Номер: FR0002951166A1

La présente invention concerne un procédé de préparation d'un polyol répondant à la formule générale (I') suivante : ledit procédé comprenant une étape de transestérification, suivie d'une étape de thiolisation. La présente invention concerne également les polyols de formule (I') telle que définie ci-dessus.

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21-12-2009 дата публикации

Method for the purification of acrolein

Номер: KR0100933077B1
Автор:
Принадлежит:

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28-09-2010 дата публикации

PROCESS FOR THE PRODUCTION OF 3-METHYLTHIOPROPANAL

Номер: KR0100984125B1
Автор:
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25-04-2018 дата публикации

퍼플루오로에테르-안정화된 양자점

Номер: KR1020180042285A
Принадлежит:

... 형광 코어/쉘(core/shell) 나노입자 및 이의 표면에 결합되는 퍼플루오로에테르 리간드를 포함하는 복합 입자가 기재된다.

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25-01-1973 дата публикации

PROCESS FOR PREPARATION OF MERCAPTANS AND SULFETOS

Номер: BR0PI6805101D0
Автор:
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20-04-2006 дата публикации

METHOD FOR PRODUCING 2-HYDROXY-4-(METHYLTHIO)BUTANOIC ACID

Номер: WO2006041209A1
Принадлежит:

Disclosed is a method for producing 2-hydroxy-4-(methylthio)butanoic acid characterized by comprising the following steps (A), (B) and (C). Step (A): a step for obtaining 3-butene-1,2-diol by reacting 1,2-epoxy-3-butene with water Step (B): a step for obtaining 4-(methylthio)butane-1,2-diol by reacting 3-butene-1,2-diol with methanethiol Step (C): a step for obtaining 2-hydroxy-4-(methylthio)butanoic acid by oxidizing 4-(methylthio)butane-1,2-diol ...

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21-03-2002 дата публикации

METHOD FOR PRODUCING CHIRAL COMPOUNDS

Номер: WO2002022569A1
Принадлежит:

The invention relates to a method for producing chiral compounds under the condition of a 1.4 Michael reaction.

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28-04-1998 дата публикации

Process for the preparation of 3-(methylthio) propanal

Номер: US0005744647A
Автор:
Принадлежит:

A process for the continuous preparation of 3-(methylthio)propanal. A liquid reaction medium is contacted with a gaseous acrolein feed stream in a gas/liquid contact zone. The reaction medium contains 3-(methylthio)propanal, methyl mercaptan and a catalyst for the reaction between methyl mercaptan and acrolein. The gaseous acrolein feed stream comprises acrolein vapor and non-condensable gas. Acrolein is transferred from the acrolein feed stream to the reaction medium and reacts with methyl mercaptan in that medium to produce a liquid reaction product containing 3-(methylthio)propanal. The non-condensable gas is separated from the liquid reaction product. The reaction product is divided into a product fraction and a circulating fraction, and the circulating fraction is recycled to the gas/liquid contact zone.

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11-09-2018 дата публикации

Method for producing an olefin by catalytic conversion of at least one alcohol

Номер: US0010071937B2

The invention relates to a method for preparing an olefine, a diene or a polyene, by catalytic conversion of at least one alcohol having a carbon chain of at least three carbon atoms and different from propan-2-ol, in the presence of at least one catalyst based of at least one phosphate of a metal or several metals M, M being chosen from among the 15 lanthanides (Lanthanum, Cerium, Praseodymium, Neodymium, Promethium, Samarium, Europium, Gadolinium, Terbium, Dysprosium, Holmium, Erbium, Thulium, Ytterbium, Lutetium), Yttrium, Scandium and Boron, and the applications of this method.

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28-02-2019 дата публикации

PROCESS FOR PREPARING LACTIC ACID ESTERS FROM SUGARS

Номер: US20190062271A1
Принадлежит:

A continuous flow process for the preparation of one or more esters of lactic acid and 2-hydroxy-3-butenoic acid or α-hydroxy methionine analogues from a sugar in the presence of a solid Lewis acid catalyst and a solvent comprising an organic solvent and water. The invention provides a means for stabilizing a Lewis acid catalyst for use in a continuous reaction process wherein the water is present in an amount of up to or equal to 10 vol. % of the organic solvent. 1. A continuous flow process for the preparation of an α-hydroxy methionine analogue from a sugar selected from one or more of the group consisting of glucose , fructose , mannose , sucrose , xylose , erythrose , erythrulose , threose and glycolaldehyde , in the presence of a compound comprising sulphur , solid Lewis acid catalyst and a solvent comprising an organic solvent and water , wherein the water is present in an amount of up to or equal to 10 vol. % of the organic solvent , and wherein the solid Lewis acid catalyst has a framework structure , which is selected from the group consisting of BEA , MFI , FAU , MOR , FER , MWW , MCM-41 and SBA-15.2. The process according to claim 1 , wherein the compound comprising sulfur is selected from the group consisting of C-Calkyl thiol claim 1 , C-Calkyl thiol salts claim 1 , dimethylmercaptan and dimethyl disulfide.3. The process according to claim 1 , wherein the vol. % of water present in the organic solvent is from 0.25 to 10 vol. %.4. A process according to claim 1 , wherein the solid Lewis acid catalyst is calcined after 450 hours.5. A process according to claim 1 , wherein the solid Lewis acid comprises an active metal selected from one or more of the group consisting of Sn claim 1 , Ti claim 1 , Pb claim 1 , Zr claim 1 , Ge and Hf.6. A process according to claim 1 , wherein the solid Lewis acid catalyst is selected from the group consisting of Sn-BEA claim 1 , Sn-MFI claim 1 , Sn-FAU claim 1 , Sn-MOR claim 1 , Sn-MWW claim 1 , Sn-MCM-41 and Sn-SBA-15.7. ...

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24-01-2017 дата публикации

Processes for the preparation of pesticidal compounds

Номер: US0009550751B2
Принадлежит: Dow AgroSciences LLC, DOW AGROSCIENCES LLC

The present application provides processes for making pesticidal compounds and compounds useful both as pesticides and in the making of pesticidal compounds.

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02-05-2010 дата публикации

Sуnthеsis аnd аppliсаtiоns оf 2-охо-4-mеthуlthiоbutуriс асid, its sаlts аnd its dеrivаtivеs

Номер: US0028512768B2

Тhе invеntiоn rеlаtеs tо а prосеss fоr prеpаring 2-охо-4-mеthуlthiоbutуriс асid (I), its sаlts аnd its dеrivаtivеs in whiсh R rеprеsеnts а grоup сhоsеn frоm СООН, СООR', NН2, NНR' оr NR'R'', whеrе R' аnd R'' аrе сhоsеn, indеpеndеntlу оf оnе аnоthеr, frоm thе grоup оf linеаr оr brаnсhеd аlkуl rаdiсаls hаving frоm 1 tо 12 саrbоn аtоms аnd сусlоаlkуl rаdiсаls hаving frоm 3 tо 12 саrbоn аtоms, ассоrding tо whiсh prосеss but-3-еnе-1,2-diоl (II) is саtаlуtiсаllу аnd sеlесtivеlу охidizеd tо givе 2-охоbut-3-еnоiс асid (III) аnd mеthуl mеrсаptаn is sеlесtivеlу соndеnsеd with 2-охоbut-3-еnоiс асid (III). 2-Охо-4-mеthуlthiоbutуriс асid (I), its sаlts аnd its dеrivаtivеs аrе usеd аs fооd supplеmеnt, in pаrtiсulаr in аnimаl nutritiоn.

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25-11-1987 дата публикации

Hydroxy-thia-alcanes, process for their preparation and their uses

Номер: EP0000176438B1
Автор: Labat, Yves

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24-06-2024 дата публикации

СПОСОБ ПОЛУЧЕНИЯ СЕРОСОДЕРЖАЩЕГО ИЛИ СЕЛЕНИЗИРОВАННОГО СОЕДИНЕНИЯ ПУТЕМ ТИОЛЕНОВОЙ РЕАКЦИИ

Номер: RU2821398C2

Изобретение относится к способу получения соединения формулы (I), где X выбран из S, Se, значения R1 R2, R3, R4 и R5 определены в формуле изобретения. Способ включает реакцию соединения формулы (IV), где X выбран из S и Se, m равно 1 или 2, R1 является таким, как определено для соединения (I), и если m равно 1, R21 представляет собой H, если m равно 2, R21 выбран из алкильной, арильной и алкиларильной групп, с соединением формулы (V), где R2, R3, R4 и R5 являются такими, как определено для соединения формулы (I), путем облучения излучением с длиной волны от 200 до 800 нм в присутствии по меньшей мере одного соединения, содержащего по меньшей мере одну функциональную группу, выбранную из спиртовой, карбоксильной, простой тиоэфирной и простой селеноэфирной функциональных групп, представляющего собой соединение формулы (VI), где X' выбран из S или Se, p и t независимо друг от друга представляют собой 0 или 1, q, r и s независимо друг от друга представляют собой 0-10, при условии, что p + r ...

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14-08-2017 дата публикации

ТИОЭТЕРИФИКАЦИЯ МЕРКАПТАНОВ В СМЕСЯХ УГЛЕВОДОРОДОВ С

Номер: RU2628085C2

FIELD: chemistry. SUBSTANCE: invention relates to a method for thioesterificating mercaptans by polyunsaturated hydrocarbons carried out in a reactor by feeding hydrogen using a heterogeneous catalyst and in the presence of 1-butene, characterized in that the molar ratio of hydrogen to polyunsaturated hydrocarbons is in the range of 0.01 to 0.8. EFFECT: increasing economic efficiency of processing the applied raw hydrocarbon feedstock stream. 14 cl, 5 dwg, 6 ex, 13 tbl РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 628 085 C2 (51) МПК C07C 319/18 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2015104808, 25.06.2013 (24) Дата начала отсчета срока действия патента: 25.06.2013 Дата регистрации: Приоритет(ы): (30) Конвенционный приоритет: 13.07.2012 DE 102012212317.2 (45) Опубликовано: 14.08.2017 Бюл. № 23 (73) Патентообладатель(и): ЕВОНИК ДЕГУССА ГМБХ (DE) (85) Дата начала рассмотрения заявки PCT на национальной фазе: 13.02.2015 (56) Список документов, цитированных в отчете о поиске: WO 2003062178, A1, 31.07.2003. US 0005759386, A1, 02.06.1998. RU 2327731,C2, 27.06.2008. (86) Заявка PCT: EP 2013/063300 (25.06.2013) (87) Публикация заявки PCT: 2 6 2 8 0 8 5 (43) Дата публикации заявки: 10.09.2016 Бюл. № 25 R U 14.08.2017 (72) Автор(ы): ПАЙЦ Штефан (DE), ВИНТЕРБЕРГ Маркус (DE), МАШМЕЙЕР Дитрих (DE), ГАЙЛЕН Франк (DE), БУКОЛЬ Райнер (DE), ШАЛЛЕНБЕРГ Йорг (DE), РИКС Армин (DE), ВОЛЬФФ Андреас (DE), ЛАЙПОЛЬД Маттиас (DE) Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, строение 3, ООО "Юридическая фирма Городисский и Партнеры" (54) ТИОЭТЕРИФИКАЦИЯ МЕРКАПТАНОВ В СМЕСЯХ УГЛЕВОДОРОДОВ С4 (57) Реферат: Изобретение относится к способу тиоэтерификации меркаптанов полиненасыщенными углеводородами, осуществляемому в реакторе при подаче водорода с применением гетерогенного катализатора и в присутствии 1-бутена, отличающемуся тем, что молярное соотношение R U 2 6 2 8 0 8 5 C 2 C 2 WO 2014/009148 (16.01.2014) Стр ...

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20-07-2009 дата публикации

СПОСОБ ВЫДЕЛЕНИЯ МЕТИЛМЕРКАПТАНА ИЗ РЕАКЦИОННЫХ ГАЗОВЫХ СМЕСЕЙ

Номер: RU2361859C2
Принадлежит: ДЕГУССА АГ (DE)

FIELD: chemistry. SUBSTANCE: invention pertains to the method of extracting methylmercaptan from reaction gas mixtures, formed during catalytic conversion of H 2 S and methanol, by converting methylmercaptan to 3-methylthiopropionate (MTP) by reacting methylmercaptan in the presence of a catalyst with 3-methylthiopropionate and acrolein or with acrolein only. EFFECT: design of an improved method of extracting methylmercaptan from reaction gas mixtures. 5 cl, 1 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 361 859 (13) C2 (51) МПК C07C 319/28 (2006.01) C07C 323/22 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21), (22) Заявка: 2006125513/04, 30.11.2004 (24) Дата начала отсчета срока действия патента: 30.11.2004 (30) Конвенционный приоритет: 18.12.2003 DE 10359636.4 (73) Патентообладатель(и): ДЕГУССА АГ (DE) (45) Опубликовано: 20.07.2009 Бюл. № 20 (85) Дата перевода заявки PCT на национальную фазу: 18.07.2006 2 3 6 1 8 5 9 R U (87) Публикация PCT: WO 2005/058809 (30.06.2005) Адрес для переписки: 101000, Москва, М.Златоустинский пер., 10, кв.15, "ЕВРОМАРКПАТ", пат.пов. И.А.Веселицкой, рег. № 11 (54) СПОСОБ ВЫДЕЛЕНИЯ МЕТИЛМЕРКАПТАНА ИЗ РЕАКЦИОННЫХ ГАЗОВЫХ СМЕСЕЙ смесей. 4 з.п. ф-лы, 1 ил. (57) Реферат: Изобретение относится к способу выделения метилмеркаптана из реакционных газовых смесей, образующихся при каталитическом превращении H S и метанола, 2 путем перевода метилмеркаптана в 3-метилтиопропиональ (МТП) с помощью реакции метилмеркаптана в присутствии катализатора с МТП и акролеином или только с акролеином. Технический результат разработка улучшенного способа выделения метилмеркаптана из реакционных газовых Ñòðàíèöà: 1 ru C 2 C 2 (86) Заявка PCT: EP 2004/013565 (30.11.2004) 2 3 6 1 8 5 9 (56) Список документов, цитированных в отчете о поиске: RU 2178411, 20.01.2002. US 2626282, 20.01.1953. GB 1166961, 15.10.1969. US 3438868, 15.04.1969. R U (43) Дата публикации заявки: 27.01.2008 (72) Автор( ...

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27-04-2012 дата публикации

СПОСОБ ПОЛУЧЕНИЯ 1,3-ДИ(R-ТИО)АДАМАНТАНОВ

Номер: RU2448955C1

Изобретение относится к химии производных адамантана, а именно к способу получения 1,3-ди(R-тио)адамантанов общей формулы ! где ; ; ! Способ заключается в присоединении к 1,3-дегидроадамантану дисульфидов, выбранных из ряда: дифенилсульфид, n,n'-бис-(4-бромфенил)дисульфид, n,n'-бис-(4-аминофенил)-дисульфид, при мольном соотношении реагентов, равном 1:1,1, в расплаве исходного дисульфида при температуре 100-110°С или в бензоле при 80°С течение 2-9 часов. Технический результат - разработан способ получения новых 1,3-ди(R-тио)адамантанов, позволяющий получать соединения заявленной структурной формулы с достаточно высокими выходами. 3 пр.

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10-08-2006 дата публикации

СПОСОБ ПОЛУЧЕНИЯ ВИНИЛСУЛЬФИДОВ

Номер: RU2005105476A
Принадлежит:

... 1. Способ получения винилорганилсульфидов взаимодействием ацетилена с органилтиолами в водно-щелочной среде, отличающийся тем, что процесс проводят с использованием 2-3-кратного мольного избытка гидроксида щелочного металла, и винилированию подвергают не свободный тиол, а соответствующий тиолат щелочного металла. 2. Способ получения по п.1, отличающийся тем, что процесс ведут при температуре 100-120°С, под давлением ацетилена 11-12 атм.

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04-06-1969 дата публикации

Способ получения ароматических тиоэфиров

Номер: SU245086A1
Принадлежит:

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09-06-1967 дата публикации

Способ получения ароматических тиоэфиров

Номер: SU197576A1
Принадлежит:

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30-04-1974 дата публикации

Способ получения дихлор-бензилтиоэтиламинов

Номер: SU426362A3
Принадлежит:

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15-09-1999 дата публикации

3-Arylsulfonyl-2-(substituted-methyl) propanoic acid derivatives as matrix metalloproteinase inhibitora

Номер: GB0009916562D0
Автор:
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15-10-2002 дата публикации

VERFAHREN ZUR HERSTELLUNG VON CHIRALEN ALPHA-HYDROXYCARBONSÄUREN

Номер: ATA17482001A
Автор:
Принадлежит:

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15-12-1975 дата публикации

VERFAHREN ZUR HERSTELLUNG VON 3-METHYLMERCAPTOPROPIONALDEHYD

Номер: ATA326874A
Автор:
Принадлежит:

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15-11-2011 дата публикации

PROCEDURE FOR the PRODUCTION OF 3METHYLTHIOPROPANAL

Номер: AT0000529397T
Принадлежит:

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15-07-2011 дата публикации

PROCEDURE AND DEVICE FOR CATALYTIC DISTILLING

Номер: AT0000512946T
Принадлежит:

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15-08-1995 дата публикации

AMIDINO CONNECTIONS, YOUR PRODUCTION AND USE AS DRUGS.

Номер: AT0000125791T
Принадлежит:

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05-07-1990 дата публикации

PREPARATION OF 3-(ALKYLTHIO) ALDEHYDES

Номер: AU0000598842B2
Принадлежит:

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24-04-1986 дата публикации

HYDROXY-THIA-ALKENES

Номер: AU0004782885A
Автор: LABAT YVES, YVES LABAT
Принадлежит:

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12-09-2001 дата публикации

A process for preparing carotenoid polyene chain compounds and intermediates forpreparing the same

Номер: AU0002024501A
Принадлежит:

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17-10-2002 дата публикации

SEMI-CONTINUOUS PHOTOCHEMICAL METHOD AND DEVICE THEREFOR

Номер: CA0002444021A1
Принадлежит:

Dans le procédé de synthèse photochimique en mode semi-continu selon l'invention, on utilise un réacteur comprenant deux zones (1, 3), la partie rayonnante (2a) de la ou des lampe(s) (2) étant totalement immergée dans une première zone (1) qui est complètement remplie de milieu réactionnel et se déverse par trop-plein dans une seconde zone (3) dont le volume est suffisant pour contenir le volume de milieu réactionnel provenant de la première zone (1) et correspondant sensiblement au volume du ou des réactif(s) introduit(s) progressivement.

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28-10-1991 дата публикации

CYTOTOXIC BICYCLO[7.3.1] TRIDEC-4-ENE-2,6-DIYNE COMPOUNDS AND PROCESS FOR THE PREPARATION THEREOF

Номер: CA0002040855A1
Принадлежит:

The present invention relates to a novel and efficient process for the preparation of 8-hydroxy-bicyclo¢7.3.1!-tridec-4-ene-2,6-diyne ring system which is part of the aglycone of esperemicin and to novel cytotoxic agents having said bicyclic ring system. The present invention also provides a method for treating animal malignant tumors by administering to an animal in need of such treatment an antitumor effective amount of a compound having the formula, ...

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18-10-1992 дата публикации

BIODEGRADABLE BLEACH STABILIZERS FOR DETERGENTS

Номер: CA0002063118A1
Принадлежит:

A process of stabilizing bleaching agents in a detergent composition using a nonphosphorus-containing biodegradable stabilizer. The process involves incorporating into a detergent composition containing a bleaching agent, a biodegradable compound of the formula X-CH2-?-m-R in which m is NR' or sulfur; X is SO3H or COOH; Y is hydrogen, SO3H or COOH; R and R' are, independently, hydrogen, -CH(Z)CH2(Z'), -CH(Z)CH(Z')(Z") or -CH2COOH; and Z, Z' and Z" are, independently, hydrogen, OH, SO3H or COOH; or a sodium, potassium or ammonium salt thereof, in an amount sufficient to stabilize the bleaching agent. Novel detergent compositions containing the biodegradable bleach stabilizers are also disclosed.

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30-03-1991 дата публикации

PROCESS FOR THE PREPARATION OF 2-(2-HALOGENOETHYLTHIO)-PHENYLSULFONAMIDES

Номер: CA0002026355A1
Принадлежит:

CA- PS/5-17770/1+2/= Process for the preparation of 2-(2-halogenoethylthio)-phenylsulfonamides A 2-(2-halogenoethylthio)-phenylsulfonamide of the formula I (I), in which Z1 and Z2 independently of one another are hydrogen, fluorine or chlorine, wherein a) a 2-halogenophenylsulfonamide of the formula II (II) in which X is fluorine, chlorine or bromine, is converted, in the presence of a base, together with a mercaptan of the formula III R-SH (III) in which R is C1-C6alkyl or C1-C6alkyl substituted by phenyl, into a 2-sulfenylphenylsulfonamide of the formula IV (IV) in which R is as defined under formula III, b) this compound is oxidized to give the 2-sulfinylphenylsulfonamide of the formula V (V) in which R is as defined under formula III, c) the resulting 2-sulfinylphenylsulfonamide of the formula V is converted, in the presence of an acid, into the disulfide of the formula VI (VI) d) the disulfide of the formula VI is reduced to the 2-mercaptophenylsulfonamide of the formula VII (VII) ...

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26-10-2007 дата публикации

СПОСОБ ПОЛУЧЕНИЯ ФЕНИЛПИРАЗОЛЬНЫХ СОЕДИНЕНИЙ

Номер: EA0000009069B1

Способ получения соединения (III), который заключается во взаимодействии соединения общей формулы (V) с дицианоацетиленом (IV), упомянутую реакцию проводят в присутствии воды где R выбран из CF3 или C1-С6алкила; и М означает серебро или щелочной или щелочно-земельный металл.

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11-09-2013 дата публикации

Intermediate compound of oseltamivir phosphate

Номер: CN103288696A
Принадлежит:

The invention provides an oseltamivir phosphate preparation which is highly safe as a pharmaceutical product, and an intermediate compound of the oseltamivir phosphate which is suited to large scale synthesis with high yield. The intermediate compound of the oseltamivir phosphate is a compound as shown in the following formula (B). In the formula (B), R11 represents alkyl or aryl with not less than 1 and not more than 10 of carbon atoms and substituent, R13 represents aryl, heteroaryl, cycloalkyl, heterocycloalkyl, cycloalkenyl, a heterocycloalkenyl group, an alkyl group, an alkenyl group or an alkynyl group having substituent, and R14 represents a carboxyl group, a group with a carboxy group as a protective group, a halogenated carbonyl group,-C(=O)-N3,-NCO,-NAc2, or -NHAc.

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23-10-1970 дата публикации

DITHIOLS THEIR PREPARATION AND COMPOSITION MADE FROM THEM

Номер: FR0002029917A5
Автор:
Принадлежит:

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13-05-2005 дата публикации

New diaryl sulfide derivatives, useful in pharmaceutical, dermatological or cosmetic compositions, prepared by solid phase synthesis

Номер: FR0002862060A1
Автор: DIAZ PHILIPPE
Принадлежит:

L'invention se rapporte à un procédé de synthèse en phase solide industrialisable de nouveaux composés de types sulfures de diaryle de formule générale (I) : Elle se rapporte également à titre de produits industriels nouveaux et utiles, aux composés chimiques issus de cette synthèse, à des compositions pharmaceutiques ou dermatologiques les contenant et à leur utilisation dans des compositions pharmaceutiques destinées à un usage en médecine humaine ou vétérinaire, ou dans des compositions cosmétiques.

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17-01-2005 дата публикации

CONTINUOUS HYDROLYSIS PROCESS FOR PREPARATION 2-HYDROXY-4-METHYLTHIOBUTANOIC ACID OR SALTS THEREOF

Номер: KR0100454104B1
Автор:
Принадлежит:

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31-01-2011 дата публикации

PROCESS FOR THE PREPARATION OF PHENYL PYRAZOLE COMPOUNDS

Номер: KR0101011835B1
Автор:
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06-02-2015 дата публикации

Номер: KR1020150014418A
Автор:
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27-12-2012 дата публикации

Method for preparing acrolein from glycerol or glycerine

Номер: US20120330049A1

The invention relates to a method for preparing acrolein from glycerol or glycerin, according to which dehydration of glycerol or glycerin is carried out in the presence of a catalyst which consists in at least one silica modified with zirconium dioxide, titanium dioxide or tungsten trioxide or any combination of these oxides, and a heteropolyacid. This method may be used for making 3-(methylthio)propionic aldehyde (MMP), 2-hydroxy-4-methylthiobutyronitrile (HMBTN), methionine or its analogs, from acrolein.

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16-05-2013 дата публикации

Method for Functionalizing Natural Fatty Substances

Номер: US20130123456A1
Принадлежит:

The invention relates to a method for functionalizing natural fatty substances: According to said method, plant oils including at least two unsaturations and the derivatives thereof, fatty acids including at least one unsaturated compound and the derivatives thereof, and mixtures of same, are reacted with a thiol derivative of formula (I), at a temperature of between 0° C. and the temperature of total degradation of the natural fatty substance and in the presence of a thermal initiator compound or a redox initiator, or by UV radiation, or by UV radiation and in the presence of a photoinitiator. The invention also relates to the resulting functionalized fatty substances and to the use thereof for the preparation of polymers. The invention further relates to a method for preparing polymers from at least one functionalized fatty substance obtained by said functionalization method. 4. The method according to in which the vegetable oil and the derivatives thereof comprise between 2 and 20 unsaturations.5. The method according to in which the vegetable oil is chosen from among natural crude or purified vegetable oils claim 3 , and vegetable oils derived from genetically modified plants or cultures.6. The method according to in which the vegetable oil is chosen from among canola oil claim 5 , safflower oil claim 5 , rapeseed oil claim 5 , cottonseed oil claim 5 , linseed oil claim 5 , corn oil claim 5 , hazelnut oil claim 5 , coconut oil claim 5 , olive oil claim 5 , palm oil claim 5 , grape-seed oil claim 5 , castor oil claim 5 , sesame oil claim 5 , soybean oil claim 5 , sunflower oil claim 5 , alone or in a mixture.7. The method according to in which the derivatives of vegetable oils are fatty esters obtained by esterification or transesterification of the vegetable oils in claim 5 , fatty amides obtained by amidification or transamidification of the vegetable oils in claim 5 , partly epoxidated oils.8. The method according to in which the fatty acids and their ...

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06-06-2013 дата публикации

PROCESS FOR PRODUCING METHIONINE

Номер: US20130143279A1
Принадлежит: Sumitomo Chemical Company, Limited

The present invention relates to a process for producing methionine, comprising a first step of reacting 2-amino-3-buten-1-ol with methanethiol, and a second step of oxidizing 2-amino-4-methylthio-1-butanol obtained in the first step. The present invention also relates to a process for producing 2-amino-4-methylthio-1-butanol, comprising a step of reacting 2-amino-3-buten-1-ol with methanethiol. 1. A process for producing methionine , comprising a first step of reacting 2-amino-3-buten-1-ol with methanethiol , and a second step of oxidizing 2-amino-4-methylthio-1-butanol obtained in the first step.2. The process according to claim 1 , wherein the first step is a step of reacting 2-amino-3-buten-1-ol with methanethiol in the presence of a radical initiator.3. The process according to claim 2 , wherein the radical initiator is an azo compound.4. The process according to claim 1 , wherein the first step is a step of reacting 2-amino-3-buten-1-ol with methanethiol in the presence of a solvent.5. The process according to claim 4 , wherein the solvent is an ester solvent.6. The process according to claim 1 , wherein the second step is a step of oxidizing 2-amino-4-methylthio-1-butanol in the presence of at least one metal selected from the group consisting of copper and the elements belonging to Group 8 claim 1 , 9 or 10 of the periodic table.7. The process according to claim 1 , wherein the second step is a step of oxidizing 2-amino-4-methylthio-1-butanol in the presence of copper and water.8. The process according to claim 1 , wherein the second step is a step of oxidizing 2-amino-4-methylthio-1-butanol in the presence of oxygen and either ruthenium or platinum.9. The process according to claim 6 , wherein the second step is a step of oxidizing 2-amino-4-methylthio-1-butanol further in the presence of at least one typical metal compound selected from the group consisting of alkali metal compounds and alkaline earth metal compounds.10. The process according to the claim ...

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12-12-2013 дата публикации

Novel Heterocyclic Compound, Method For Producing Intermediate Therefor, And Use Thereof

Номер: US20130330876A1
Принадлежит: Nippon Kayaku Co Ltd

Provided are a novel heterocyclic compound represented by formula (1), and a field-effect transistor having a semiconductor layer comprising the aforementioned compound. Also provided is a method for producing an intermediate enabling the production of the aforementioned novel heterocyclic compound. (In the formula, R 1 and R 2 represent a hydrogen atom, a C 2-16 alkyl group or an aryl group. However, when R 1 each independently represents a C 2-16 alkyl group or an aryl group, R 2 represents a hydrogen atom or each independently represents an aryl group; and when R 1 represents a hydrogen atom, R 2 each independently represents an aryl group.)

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08-01-2015 дата публикации

PREPARATION OF-SULFENYLATED CARBONYL COMPOUNDS FROM PROPARGYLIC ALCOHOLS IN ONE STEP

Номер: US20150011796A1
Принадлежит:

The present relates to a method and a kit to produce an optically pure α-sulfenylated carbonyl compound comprising a primary or a secondary propargylic alcohol and an aryl thiol, a transition metal catalyst and a solvent. 1. A method of preparing an α-sulfenylated carbonyl compound according to the present invention comprising:providing reactants comprising a primary or a secondary propargylic alcohol, a thiol and a transition metal catalyst;providing a solvent;mixing the reactants and the solvent;letting the reactants react.2. The method according to wherein the method is performed in one step with no intermediate steps.3. The method according to conducted in an inert atmosphere or in an open atmosphere.4. The method according to wherein the thiol is an aryl or alkyl thiol.5. The method according to wherein the catalyst is a catalyst comprising gold(III) claim 1 , gold(I) claim 1 , copper(I) claim 1 , palladium(II) or platinum(II) or mixtures thereof such as gold and palladium claim 1 , or copper and palladium claim 1 , or platinum and palladium.6. The method according to wherein the yield of the compound is 55 to 100% claim 1 , preferably 80 to 100%.7. The method according to wherein the catalyst is a gold(I) chloride or copper(I) iodide catalyst.8. The method according to wherein the method is performed in one step with no intermediate steps and wherein the thiol is a benzene thiol and the catalyst is a gold(I) chloride catalyst.9. The method according to wherein the transition metal catalyst is a mixture of gold(I) and palladium(II) and the thiol is an alkylthiol.10. A kit for preparing an α-sulfenylated carbonyl compound comprising a primary or a secondary propargylic alcohol and a thiol claim 1 , at least one transition metal catalyst and a solvent. The present invention relates to an atom efficient methodology to prepare α-sulfenylated carbonyl compounds from propargylic alcohols and thiols by means of transition metal catalysisAlfa sulfenylated carbonyl ...

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17-01-2019 дата публикации

PROCESS FOR PREPARING ESTERS OF LACTIC ACID, AND 2-HYDROXY-3-BUTENOIC ACID OR ALPHA-HYDROXY METHIONINE ANALOGUES FROM SUGARS

Номер: US20190016674A1
Принадлежит:

A continuous flow process for the preparation of one or more esters of lactic acid and 2-hydroxy-3-butenoic acid or α-hydroxy methionine analogues from a sugar in the presence of a solid Lewis acid catalyst and a solvent comprising an organic solvent and water. The invention provides a means for stabilizing a Lewis acid catalyst for use in a continuous reaction process wherein the water is present in an amount of up to or equal to 10 vol. % of the organic solvent. 1. A continuous flow process for the preparation of one or more esters of lactic acid and 2-hydroxy-3-butenoic acid from a sugar selected from one or more of the group consisting of glucose , fructose , mannose , sucrose , xylose , erythrose , erythrulose , threose and glycolaldehyde , in the presence of a solid Lewis acid catalyst and a solvent comprising an organic solvent and water , wherein the volume % of water present in the organic solvent is from 0.25 vol % to 10 vol. % , wherein the solid Lewis acid catalyst has a framework structure , which is selected from the group consisting of BEA , MFI , FAU , MOR , FER , MWW , MCM-41 and SBA-15.2. A process according to claim 1 , wherein the yield of the one or more lactic acid esters decreases by up to 0.25% per hour on stream on average claim 1 , wherein the yield is amount of ester relative to the amount of sugar.3. A process according to claim 1 , wherein the yield of the one or more lactic acid esters decreases by up to 0.10% per hour on average claim 1 , wherein the yield is amount of ester relative to the amount of sugar.4. A process according to claim 1 , wherein the yield of the one or more lactic acid esters decreases by up to 5% after 50 hours on stream claim 1 , wherein the yield is amount of ester relative to the amount of sugar.5. A process according to claim 1 , wherein the yield of the one or more lactic acid esters is greater than 40% after 50 hours on stream claim 1 , wherein the yield is amount of ester relative to the amount of sugar.6. ...

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30-01-2020 дата публикации

Process for the purification of acrolein

Номер: US20200031751A1
Принадлежит: EVONIK DEGUSSA GmbH

The present invention relates to a process for purifying acrolein. The process includes the steps of a) splitting a liquid feed stream containing acrolein into at least a first liquid stream and a second liquid stream, b) introducing the first liquid stream with a temperature T 1 into a distillation column at a point between the top and the bottom of the distillation column, c) introducing the second liquid stream with a temperature T 2 into the distillation column at the top of the distillation column, d) withdrawing an overhead vapor stream enriched in acrolein from the distillation column, and e) withdrawing a bottom stream depleted in acrolein. The temperature T 2 of the second liquid stream in step c) is lower than the temperature T 1 of the first liquid stream in step b).

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22-05-2014 дата публикации

ORGANOACTINIDE-, ORGANOLANTHANIDE-, AND ORGANOGROUP-4-MEDIATED HYDROTHIOLATION OF TERMINAL ALKYNES WITH ALIPHATIC, AROMATIC AND BENZYLIC THIOLS

Номер: US20140142319A1
Принадлежит: Northwestern University

An efficient and highly Markovnikov selective organoactinide-, organolanthanide-, and organozirconium-catalyzed addition of aryl, benzyl, and aliphatic thiols to terminal alkynes is described. The corresponding vinyl sulfides are produced with little or no side-products. 2. A vinyl sulfide of wherein the catalyst is selected from CpSmN(TMS) claim 1 , MeSiCp″Th[CH(TMS)]. CGCZrMe claim 1 , CpYCH(TMS) claim 1 , MeSiCp″UBn claim 1 , CpZrMe claim 1 , CGCSmN(TMS) claim 1 , CGCU(NMe) claim 1 , Cp*ZrBn claim 1 , La[N(TMS)] claim 1 , CGCTh(NMe) claim 1 , Zr[NMe] claim 1 , Nd[N(TMS)] claim 1 , U(NEt) claim 1 , Cp*ZrClNMe claim 1 , Lu[CH(TMS)] claim 1 , CpU(NMe) claim 1 , Y[N(TMS)] claim 1 , CpTh(CHTMS) claim 1 , CpLaCH(TMS) claim 1 , CpU(CHTMS) claim 1 , CpSmCH(TMS) claim 1 , and CpLuCH(TMS).3. A vinyl sulfide according to selected from the group consisting ofa) hex-1-en-2-yl(pentyl)sulfane;b) cyclohexyl(hex-1-en-2-yl)sulfane;c) hex-1-en-2-yl(4-methylbenzyl)sulfane;d) pentyl(1-phenylvinyl)sulfane;e) (1-(cyclohex-1-en-1-yl)vinyl)(pentyl)sulfanef) (1-cyclohexylvinyl)(pentyl)sulfane;g) (1-cyclohexylvinyl)(4-methylbenzyl)sulfane;h) ethyl(hex-1-en-2-yl)sulfane;i) hex- 1-en-2-yl(2,2,2-trifluoroethyl)sulfane;j) benzyl(hex-1-en-2-yl)sulfane;k) (3-cyclohexylprop-1-en-2-yl)(pentyl)sulfane;l) pentyl(3-phenylprop-1-en-2-yl)sulfane;m) 3-(1-(pentylthio)vinyl)pyridine; andn) 2-(pentylthio)prop-2-en-1-amine. This application is a divisional of and claims priority to U.S. application Ser. No. 12/856,154 filed Aug. 13, 2010, which claimed priority to U.S. provisional application Ser. 61/233,541 filed Aug. 13, 2009-each of which is incorporated herein by reference in its entirety.This invention was made with government support under Grant No. CHE0809589 awarded by the National Science Foundation. The government has certain rights in the invention.The present invention relates generally to atom-efficient organoactinide-, organolanthanide-, and organoGroup-4-catalyzed intermolecular ...

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08-03-2018 дата публикации

INTRODUCTION OF ALKYL SUBSTITUENTS TO AROMATIC COMPOUNDS

Номер: US20180065904A1
Автор: Pappo Doron, PARNES Regev
Принадлежит:

Novel selective synthesis route to introduce primary alkyl groups on aromatic compounds is disclosed. The synthesis route is based on electrophilic aromatic substitutions of thionium ion species that are generated in-situ from aldehydes and thiols, affording benzyl sulfide that can be reduced with triethylsilane. 2. The process of claim 1 , wherein Ris ethyl.3. The process of claim 1 , wherein said acidic catalyst is one or more Lewis acid selected from the group consisting of: CuCl claim 1 , Sc(OTf) claim 1 , Fe(OTf) claim 1 , In(OTf) claim 1 , BF3.OEt claim 1 , and Cu(OTf).4. The process of claim 1 , wherein said acidic catalyst is one or more Brønsted acids selected from the group consisting of: Triflic acid (TfOH) claim 1 , para-toluenesulfonic acid claim 1 , and trifluoroacetic acid.5. The process of claim 1 , wherein said suitable solvent is a polar solvent selected from the group consisting of: acetonitrile claim 1 , nitromethane claim 1 , and 2 claim 1 ,2 claim 1 ,2-trifluoroethanol (TFE) claim 1 , hexafluoroisopropanol (HFIP) or a mixture thereof.6. The process of claim 1 , characterized by at least 30% yield of the compound represented by Formula I.8. The process of claim 7 , wherein said reducing agent is a silane.9. The process of claim 8 , wherein said silane is EtSiH.14. A pharmaceutical composition comprising a product according to and a pharmaceutically acceptable excipient.15. A composition comprising:{'sub': 2', '3', '3', '3', '3', '2', '2, '(i) one or more Lewis acids selected from the group consisting of: CuCl, Sc(OTf), Fe(OTf), In(OTf), BF.OEt, TfOH and Cu(OTf);'}(ii) a polar solvent selected from the group consisting of: acetonitrile, nitromethane, and 2,2,2-trifluoroethanol (TFE), or a mixture thereof; and(iii) RSH, wherein R is selected from the group consisting of: alkyl, benzyl, alkoxy, aryloxy, carbonyl, and carboxy, substituted or non-substituted.16. The composition of claim 15 , wherein said Lewis acid is in a molar concentration of at ...

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15-03-2018 дата публикации

Methods for Producing Thiol Compounds and Sulfide Compounds Using Diphenylamine or a Phenol Compound

Номер: US20180072663A1
Автор: LASSEN Kenneth M.
Принадлежит:

The present invention discloses processes for producing a thiol compound or a sulfide compound from an olefin compound. Diphenylamine or a phenol compound can be used to increase the rate of conversion of the olefin compound to the thiol compound or the sulfide compound. 1. A process for producing a thiol compound , the process comprising: a) an olefin compound;', {'sub': '2', 'b) HS;'}, 'c) diphenylamine and/or a phenol compound comprising BHT, carvacrol, 2,2′-ethylidene-bis(4,6-di-tert-butylphenol), pentaerythritol tetrakis(3,5-di-tert-butyl-4-hydroxyhydrocinnamate), or any combination thereof; and', 'd) a photoinitiator and/or a free radical initiator; and, 'i) contactingii) forming the thiol compound.2. The process of claim 1 , wherein a molar ratio of HS to carbon-carbon double bonds of the olefin compound is from about 2:1 to about 150:1.3. The process of claim 1 , wherein:an amount of diphenylamine and/or the phenol compound is in a range from about 0.1 wt. % to about 1 wt. %, based on the weight of the olefin compound; andan amount of the photoinitiator and/or the free radical initiator is in a range from about 0.05 wt. % to about 5 wt. %, based on the weight of the olefin compound.4. The process of claim 1 , wherein the thiol compound is formed in the presence of ultraviolet light.5. The process of claim 1 , wherein the olefin compound comprises ethylene claim 1 , propylene claim 1 , 1-butene claim 1 , 2-butene claim 1 , 3-methyl-1-butene claim 1 , isobutylene claim 1 , 1-pentene claim 1 , 2-pentene claim 1 , 3-methyl-1-pentene claim 1 , 4-methyl-l-pentene claim 1 , 1-hexene claim 1 , 2-hexene claim 1 , 3-ethyl-1-hexene claim 1 , 1-heptene claim 1 , 2-heptene claim 1 , 3-heptene claim 1 , 1-octene claim 1 , 1-decene claim 1 , 1-dodecene claim 1 , styrene claim 1 , cyclopentene claim 1 , cyclohexene claim 1 , cycloheptene claim 1 , cyclooctene claim 1 , or any combination thereof.6. The process of claim 1 , wherein the olefin compound comprises limonene ...

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18-03-2021 дата публикации

Demethylation of Methyl Ester of Methionine and its Hydroxy Analog

Номер: US20210078945A1
Принадлежит: Haldor Topsoe A/S

The following invention regards a process of demethylating a methyl ester of methionine or its hydroxy analog and producing methane thiol as a side-product. The methionine and its hydroxy analog are suitable as an animal feed additive and as a food additive. The methane thiol may be consumed in a hydrothiolation step such as in a step of preparing the methyl ester of methionine or its hydroxy analog from from methyl vinyl glycolate. 1. A process of producing a demethylation product of the formula (II):{'br': None, 'sup': '31', 'sub': 2', '2', '3, 'OCO—CHR—CH—CH—S—CH\u2003\u2003(II)'}{'sub': '2', 'wherein R is —OH or —NH,'} {'br': None, 'sub': 3', '2', '2', '3, 'CH—OCO—CHR—CH—CH—S—CH\u2003\u2003(I),'}, 'comprising a demethylation step of reacting a methyl ester of the formula (I)wherein R has the same meaning as above,with a hydrogen sulfide anion to obtain methane thiol and the demethylation product of the formula (II).2. The process according to claim 1 , comprising recovering the methane thiol formed in the demethylation step.3. A process according to claim 2 , wherein the methane thiol recovered is used in a hydrothiolation step.4. A process of producing a demethylation product of the formula (II):{'br': None, 'sup': '−', 'sub': 2', '2', '3, 'OCO—CHR—CH—CH—S—CH\u2003\u2003(II)'}{'sub': '2', 'wherein R is —OH or —NH,'}comprising: {'br': None, 'sub': 3', '2, 'b': '50', 'CH—OCO—CHR—CH CH\u2003\u2003(III),'}, 'a1) a hydrothiolation step of reacting a compound of the formula (Ill)wherein R has the same meaning as above, {'br': None, 'sub': 3', '2', '2', '3, 'CH—OCO—CHR—CH—CH—S—CH\u2003\u2003(I),'}, 'with methane thiol to obtain a methyl ester of the formula (I)wherein R has the same meaning as above, andb) a demethylation step of reacting the methyl ester of the formula (I) with a hydrogen sulfide anion to obtain methane thiol and the demethylation product of the formula (II).5. A process of producing a demethylation product of the formula (II):{'br': None, 'sup': ...

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19-06-2014 дата публикации

METHOD FOR PREPARING ACROLEIN FROM GLYCEROL OR GLYCERINE

Номер: US20140171676A1
Принадлежит:

A method of preparing acrolein from glycerol or glycerine is disclosed. The method includes dehydrating glycerol or glycerine in the presence of a catalyst consisting of at least (a) a mixed oxide of zirconium and at least one metal, said metal being selected from niobium, tantalum and vanadium, or (b) a zirconium oxide and at least one metal oxide, the metal being selected from niobium, tantalum and vanadium, or (c) a silicon oxide and a mixed oxide of zirconium and at least one metal, the metal being selected from tungsten, cerium, manganese, niobium, tantalum, titanium, vanadium and silicon, or (d) a titanium oxide and a mixed oxide of zirconium and at least one metal, said metal being selected from tungsten, cerium, manganese, niobium, tantalum, titanium, vanadium and silicon. 1. A method for preparing acrolein from glycerol or glycerine , where dehydration of the glycerol or glycerine is achieved in the presence of a catalyst based on zirconium oxide , the catalyst comprising:(a) a mixed oxide of zirconium and of at least one metal M, said metal being selected from niobium, tantalum and vanadium, or(b) a zirconium oxide and at least one metal M oxide, said metal being selected from niobium, tantalum and vanadium, or(c) a silicon oxide, a mixed oxide of zirconium and of at least one metal M, said metal being selected from tungsten, cerium, manganese, niobium, tantalum, titanium, vanadium and silicon, or(d) a titanium oxide, a mixed oxide of zirconium and of at least one metal M, said metal being selected from tungsten, cerium, manganese, niobium, tantalum, titanium, vanadium and silicon.2. The method according to claim 1 , wherein the catalyst comprises at least (a) a mixed oxide of zirconium and of at least one metal M and (b) a zirconium oxide and at least one metal M oxide.3. The method according to claim 1 , wherein at least one of the oxides of said catalyst (a) claim 1 , (b) claim 1 , (c) and (d) is supported.4. The method according to claim 1 , wherein ...

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11-04-2019 дата публикации

Methods for Producing Thiol Compounds and Sulfide Compounds Using Diphenylamine or a Phenol Compound

Номер: US20190106384A1
Автор: LASSEN Kenneth M.
Принадлежит:

The present invention discloses processes for producing a thiol compound or a sulfide compound from an olefin compound. Diphenylamine or a phenol compound can be used to increase the rate of conversion of the olefin compound to the thiol compound or the sulfide compound. 1. A process for producing a thiol compound , the process comprising: a) an olefin compound;', {'sub': '2', 'b) HS;'}, 'c) diphenylamine and/or a phenol compound, or any combination thereof and', 'd) a photoinitiator and/or a free radical initiator; and, 'i) contactingii) forming the thiol compound.2. The process of claim 1 , wherein the phenol is an alkyl phenol.3. The process of claim 1 , wherein a molar ratio of HS to carbon-carbon double bonds of the olefin compound is from about 2:1 to about 150:1.4. The process of claim 1 , wherein:an amount of diphenylamine and/or the phenol compound is in a range from about 0.1 wt. % to about 1 wt. %, based on the weight of the olefin compound; andan amount of the photoinitiator and/or the free radical initiator is in a range from about 0.05 wt. % to about 5 wt. %, based on the weight of the olefin compound.5. The process of claim 1 , wherein the thiol compound is formed in the presence of ultraviolet light.6. The process of claim 1 , wherein the olefin compound comprises ethylene claim 1 , propylene claim 1 , 1-butene claim 1 , 2-butene claim 1 , 3-methyl-1-butene claim 1 , isobutylene claim 1 , 1-pentene claim 1 , 2-pentene claim 1 , 3-methyl-1-pentene claim 1 , 4-methyl-1-pentene claim 1 , 1-hexene claim 1 , 2-hexene claim 1 , 3-ethyl-1-hexene claim 1 , 1-heptene claim 1 , 2-heptene claim 1 , 3-heptene claim 1 , 1-octene claim 1 , 1-decene claim 1 , 1-dodecene claim 1 , styrene claim 1 , cyclopentene claim 1 , cyclohexene claim 1 , cycloheptene claim 1 , cyclooctene claim 1 , or any combination thereof.7. The process of claim 1 , wherein the olefin compound comprises limonene claim 1 , butadiene claim 1 , isoprene claim 1 , cyclobutadiene claim 1 , ...

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25-08-2022 дата публикации

METHOD FOR PRODUCING DERIVATIVE OF ORGANIC SUBSTANCE AND METHOD FOR ANALYZING SAMPLE CONTAINING ORGANIC SUBSTANCE

Номер: US20220267264A1
Автор: Harada Masashi
Принадлежит: AJINOMOTO CO., INC.

Derivatives of an organic substance containing one or more groups selected from the group consisting of sulfanyl, selanyl and sulfino may be produced by reacting an organic substance containing one or more groups selected from the group consisting of sulfanyl, selanyl and sulfino with an olefin compound containing an ethylene structure having at least two electron-withdrawing groups except halogen atoms under an acidic condition to form a derivative of the organic substance 1. A method for producing a derivative of an organic substance , comprising:reacting an organic substance containing one or more groups selected from the group consisting of sulfanyl, selanyl and sulfino with an olefin compound under an acidic condition to form a derivative of the organic substance,wherein the olefin compound contains an ethylene structure having at least two electron-withdrawing groups except halogen atoms.2. The method for producing a derivative according to claim 1 , wherein the ethylene structure has two of the electron-withdrawing groups.3. The method for producing a derivative according to claim 1 , wherein two of the electron-withdrawing groups are bonded to a single carbon atom constituting the ethylene structure.4. The method for producing a derivative according to claim 1 , wherein the at least two electron-withdrawing groups are identical groups.6. The method for producing a derivative according to claim 1 , wherein the electron-withdrawing groups claim 1 , or EWGand EWGare each independently —C(═O)—OR claim 1 , —S(═O)—R claim 1 , —P(═O)(—OR) claim 1 , cyano claim 1 , a halogen atom-substituted alkyl claim 1 , carboxy claim 1 , nitro claim 1 , —S(═O)—R claim 1 , —C(═O)—Ror —C(═O)—NRR claim 1 , wherein{'sup': 1', '2', '3', '4, 'R, R, Rand Reach independently represent a monovalent hydrocarbon group or a monovalent heterocyclic group and optionally each have a substituent, and'}{'sup': 5', '6', '7, 'R, Rand Reach independently represent a hydrogen atom, a monovalent ...

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10-05-2018 дата публикации

LIQUID THIOETHER CARBOXYLIC ACID ESTERS

Номер: US20180127363A1
Принадлежит: BASF SE

The present invention relates to a liquid thioether carboxylic acid ester, a process for the preparation of the liquid thioether carboxylic acid ester, an article comprising the liquid thioether carboxylic acid ester as well as a use of the liquid thioether carboxylic acid ester as a component or substantial part of an optical system, tunable lens, adaptive optical module and materials thereof, actuator, electro-active polymer, laser and all related products, optical liquid, cover glass, lens or container material, tiltable prism or optical calibration liquid or optical refractive index matching liquid and a use of the liquid thioether carboxylic acid ester as a component or substantial part of a color filter, window material, coating, varnish, lacquer, dye or pigment formulation, immersion liquid, ingredient or additive in a plastic material or ingredient or additive in a polymer. 2. The liquid thioether carboxylic acid ester according to claim 1 , wherein in the formula (A1) Ris hydrogen or ethyl; Ris hydrogen or a linear C-C-alkyl containing at least one sulfhydryl moiety (SH); Rand Rare independently selected from a linear C-C-alkyl containing at least one sulfhydryl moiety (SH) claim 1 , and one or two CHgroup(s) of Rand/or Rand/or Ris/are replaced by O claim 1 , S and/or C═O.3. The liquid thioether carboxylic acid ester according to claim 1 , wherein in the formula (A1) Ris hydrogen; Ris a linear C-C-alkyl containing at least one sulfhydryl moiety (SH); Rand Rare independently selected from a linear C-C-alkyl containing at least one sulfhydryl moiety (SH) claim 1 , and one CHgroup of Rand/or Rand Ris replaced by S.4. The liquid thioether carboxylic acid ester according to claim 1 , wherein in the formula (A1) Ris hydrogen or ethyl; Ris hydrogen or a linear C-C-alkyl containing at least one sulfhydryl moiety (SH); Rand Rare independently selected from a linear C-C-alkyl containing at least one sulfhydryl moiety (SH) claim 1 , and two CHgroups of Rand/or Rand ...

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02-05-2019 дата публикации

METHIONINE PRODUCTION

Номер: US20190127321A1
Принадлежит: EVONIK DEGUSSA GmbH

There is provided a method of producing a method of producing methionine, the method comprising 1. A method of producing methionine , the method comprisingcontacting vinyiglycine or derivatives thereof with at least one free radical methyl mercaptan in a reaction medium.2. The method according to claim 1 , wherein the ratio of methyl mercaptan to vinylglycine or derivatives thereof is 1:1-1:10.3. The method according to claim 1 , wherein the free radical methyl mercaptan is formed by contacting methyl mercaptan with at least one free radical initiator in the reaction medium.4. The method according to claim 3 , wherein the free radical initiator is selected from the group consisting of azobisisobutyronitrile (AIBN) claim 3 , N-bromosuccinimide (NBS) claim 3 , dibenzoyl peroxide (DBPO) and 2 claim 3 ,2-Azobis (2-(2-imidazolin-2-yl)propane) dihydrochloride.5. The method according to claim 3 , wherein the ratio of free radical initiator to methyl mercaptan is selected from the range of 1:10000 to 1:10.6. The method according to claim 3 , wherein the free radical initiator is dibenzoyl peroxide (DBPO).7. The method according to claim 1 , wherein the free radical methyl mercaptan is formed by contacting methyl mercaptan with UV light.8. The method according to claim 7 , wherein the UV light has a wavelength of 300 nm.9. The method according to claim 1 , wherein the free radical methyl mercaptan is formed by contacting methyl mercaptan with at least one photoinitiator and UV light at a wavelength of 365 nm.10. The method according to claim 9 , wherein the photoinitiator is selected from the group consisting of hydroxylcyclohexyl phenyl ketone (HCPK) claim 9 , 2-benzyl-2-N claim 9 , N-dimethylamino-1-(4-morpholino phenyl)-1-butanone (DBMP) claim 9 , 1-hydroxyl cyclohexyl phenyl ketone claim 9 , and beozophenone claim 9 , 2-methyl-1-(4-methylthio)phenyl-2-morpholino propan-1-onc (MMP).11. The method according to claim 1 , wherein the vinylglycine or derivatives thereof is ...

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25-05-2017 дата публикации

Catalysis and Catalysts for Polymerization

Номер: US20170145156A1
Принадлежит:

Methods of metal-free synthesis of a compound for catalysis include mixing an aniline of the general structure (1): 2. The method of claim 1 , wherein the synthesis comprises:forming a second reaction mixture comprising the compound and one or more monomers selected from the group consisting of lactide, carbonate, and ester, wherein the compound is present between about 0.01 mol % to about 50 mol %; andpolymerizing the one or more monomers to form a polymer selected from the group consisting of polylactide, polycarbonate, polyester, and mixtures thereof.3. The method of claim 1 , wherein the aldehyde is paraformaldehyde.4. The method of claim 1 , further comprising adding to the reaction mixture a thiol of the general structure (2):{'br': None, 'HS—R′ \u2003\u2003(2),'}wherein R′ is linear or branched alkyl.5. The method of claim 1 , wherein the synthesis comprises heating the first reaction mixture to between about 80° C. to about 100° C.6. The method of claim 1 , further comprising adding a base to the first reaction mixture.7. The method of claim 1 , further comprising adding an acid to the first reaction mixture.8. The method of claim 3 , wherein a ratio of equivalents of paraformaldehyde to equivalents of the aniline in the first reaction mixture is about 1.9. The method of claim 1 , wherein the electron withdrawing group is selected from the group consisting of —H claim 1 , —F claim 1 , —CF claim 1 , —NOand —N(Me).10. The method of claim 1 , further comprising adding a solvent selected from the group consisting of N-methyl-pyrrolidone claim 1 , dimethylsulfoxide claim 1 , N claim 1 ,N-dimethylformamide claim 1 , N claim 1 ,N-dimethylacetamide claim 1 , propylene carbonate claim 1 , propylene glycol methyl ether acetate claim 1 , methanol claim 1 , ethanol claim 1 , isopropanol claim 1 , and acetic acid to the first reaction mixture.11. The method of claim 2 , wherein the polymer has a polydispersity index of between about 1.00 to about 1.2.15. A catalyst ...

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18-06-2015 дата публикации

THIOETHERIFICATION OF MERCAPTANES IN C4 HYDROCARBON MIXTURES

Номер: US20150166475A1
Принадлежит: Evonik Industries AG

The invention relates to a method for the thioetherification of mercaptanes with polyunsaturated hydrocarbons, carried out in a reactor with the addition of hydrogen, using a heterogenic catalyst and in the presence of 1-butene. The aim of the invention is to develop such a method to the extent that the creation of value from the Craw material stream is increased. Said aim is achieved in that the hydrogen is added to the reaction in such a manner that the molar ratio of hydrogen to polyunsaturated hydrocarbons is no more than one. 1. A process for the thioetherification of a mercaptan , comprising reacting a mercaptan with one or more multiply unsaturated hydrocarbons to obtain a thioether , in the presence of hydrogen , a heterogeneous catalyst , and 1-butene ,wherein a molar ratio of the hydrogen to the multiply unsaturated hydrocarbons is not more than one.2. The process of claim 1 , wherein the molar ratio of the hydrogen to the multiply unsaturated hydrocarbons is in a range from 0.01 to 0.8.3. The process of claim 1 , wherein the multiply unsaturated hydrocarbons comprise at least one selected from the group consisting of 1 claim 1 ,3-butadiene claim 1 , but-3-en-1-yne and 1 claim 1 ,2-butadiene.4. The process of claim 1 , wherein the mercaptan comprises ethanethiol and/or methanethiol.5. The process of claim 1 , wherein the reacting is carried out in the presence of carbon monoxide claim 1 , with the content of carbon monoxide in feed to the reactor is less than 20 ppm claim 1 , based on the mass of the feed.6. The process of claim 1 , wherein the heterogeneous catalyst comprises a metal of group VIII of the Periodic Table of the Elements.7. The process of claim 1 , wherein the catalyst is a coated catalyst comprising aluminum oxide as a support and palladium as a catalytically active metal.8. The process of claim 1 , wherein an entry temperature of feed into the reactor is in the range from 0° C. to 180° C.9. The process of claim 1 , operated as a liquid- ...

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23-06-2016 дата публикации

RAPID CURE POLYMERIC RESINS

Номер: US20160177000A1
Автор: Zweig Andrew M.
Принадлежит:

A polysulfide material having reactive vinyl end groups and a method of making a vinyl end-capped polysulfide material are described. The vinyl end-capped polysulfide material has potential applications as a sealant, an adhesive, a coating, a caulking, or the like. In a specific example, the polysulfide material may be used as a precursor material for a sealant resin in the manufacturing of an integral fuel tank of an aircraft. An example method for making polysulfide materials includes contacting a vinyl-functionalized aryl halide and/or a vinyl-functionalized heteroaryl halide with dithiols and/or trithiols in the presence of an organic solvent. 2. The polymer of claim 1 , wherein each instance of Ris the same or different and is selected from -aryl-alkyl- or -aryl-.3. The polymer of claim 2 , wherein each instance of Ris the same or different and is selected from -benzyl- or -phenyl-.4. The polymer of claim 3 , wherein each instance of Ris -ethyl-O-methyl-O-ethyl-.5. The polymer of claim 1 , wherein each instance of Ris -heteroaryl-.6. The polymer of claim 1 , wherein each instance of Ris -heteroaryl-alkyl-.7. The polymer of claim 1 , wherein each instance of -alkyl- of Ris selected from the group consisting of -methyl- claim 1 , -ethyl- claim 1 , and -propyl-.9. The polymer of claim 8 , wherein each instance of Ris -ethyl-O-methyl-O-ethyl- and each instance of Ris -benzyl-.10. The polymer of claim 8 , wherein each instance of -alkyl- of Ris selected from the group consisting of -methyl- claim 8 , -ethyl- claim 8 , and -propyl-.14. The method of claim 13 , wherein X is chlorine claim 13 , Ris -benzyl- claim 13 , and at least one instance of Ris -ethyl-O-methyl-O-ethyl-.15. The method of claim 13 , wherein the organic solvent is N claim 13 ,N-dimethylformamide. This application claims benefit from U.S. Provisional Patent Application No. 62/095,371, filed Dec. 22, 2014, which is incorporated by reference in its entirety.The present disclosure relates generally to ...

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06-06-2019 дата публикации

Flow Reactor Vessels and Reactor Systems

Номер: US20190168184A1
Принадлежит: Chevron Phillips Chemical Co LP

The present invention discloses high pressure flow reactor vessels and associated systems. Also disclosed are processes for producing thiol compounds and sulfide compounds utilizing these flow reactor vessels.

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22-06-2017 дата публикации

Processes For The Preparation Of Beta-Aminosulfone Compounds

Номер: US20170174627A1
Принадлежит: Lek Pharmaceuticals D.D.

The present invention relates to processes for preparing β-aminosulfone compounds. The provided compounds are useful intermediates in the preparation of sulfone group containing isoindoline-based compounds, in particular apremilast. 2. The process according to claim 1 , wherein the solvent comprises water.3. The process according to claim 1 , wherein the compound of formula (I) is a substantially racemic compound.4. The process according to claim 1 , wherein Ris methoxy or hydroxy claim 1 , Ris ethoxy claim 1 , and Ris methyl.5. The process according to claim 1 , wherein Ror Rrepresents hydrogen.6. The process according to claim 1 , wherein step (b) is carried out in the presence of a catalyst.8. The process according to claim 7 , wherein Rand Reach represent methyl.9. A process for preparing apremilast or a pharmaceutically acceptable salt or solvate thereof claim 7 , comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, '(aa) carrying out the process according to , and'}(bb) subsequently carrying out further synthetic step(s) to obtain apremilast.10. A process for preparing a pharmaceutical composition comprising apremilast or a pharmaceutically acceptable salt or solvate thereof claim 9 , the process comprising the steps of carrying out the process according to to obtain apremilast or a pharmaceutically acceptable salt or solvate thereof claim 9 , and mixing said obtained apremilast or a pharmaceutically acceptable salt or solvate thereof claim 9 , optionally with another active pharmaceutical ingredient claim 9 , with a pharmaceutically acceptable excipient claim 9 , carrier and/or diluent.12. Use of the compound according to for preparing apremilast or a pharmaceutically acceptable salt or solvate thereof.14. The process according to claim 13 , wherein substantially only compound of formula (IX) or substantially only compound of formula (X) is obtained. The present invention relates to processes for preparing β-aminosulfone compounds. The provided ...

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09-07-2015 дата публикации

Processes for the preparation of pesticidal compounds

Номер: US20150191448A1
Принадлежит: DOW AGROSCIENCES LLC

The present application provides processes for making pesticidal compounds and compounds useful both as pesticides and in the making of pesticidal compounds.

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05-07-2018 дата публикации

PROCESSES FOR THE PREPARATION OF PESTICIDAL COMPOUNDS

Номер: US20180186734A1
Принадлежит:

The disclosure relates to efficient and economical synthetic chemical processes for the preparation of pesticidal thioethers. Further, the disclosure relates to certain novel compounds useful in the preparation of pesticidal thioethers. 8. The process of claim 1 , wherein the contacting is carried out in the presence of a solvent.9. The process of claim 8 , wherein the solvent is acetonitrile (CHCN) claim 8 , dioxane claim 8 , N claim 8 ,N-dimethylformamide (DMF) claim 8 , dichloromethane (DCM) claim 8 , ethylacetate (EtOAc) N-methyl-2-pyrrolidone (NMP) claim 8 , tetrahydrofuran (THF) claim 8 , toluene or a mixture thereof.10. The process of claim 1 , wherein the process is carried out as a semi-batch process.11. The process of claim 10 , wherein the semi-batch process is carried out in a reaction vessel charged with a compound of formula III.12. The process of claim 11 , wherein the semi-batch process comprises a first feedstream comprising the peroxide reagent according to formula IV or formula V that is added to the reaction vessel over a period of time.13. The process of claim 12 , wherein the semi-batch process further comprises a second feedstream comprising 3 claim 12 ,3 claim 12 ,3-trifluoropropene that is added to the reaction vessel over a period of time.14. The process of claim 13 , wherein the compound of formula I is included in the first feedstream.15. The process of claim 13 , wherein the compound of formula I is included in a third feedstream.16. The process of claim 13 , wherein the first feedstream is added over a period of about 15 minutes to about 180 minutes and the second feedstream is added over a period of about 15 minutes to about 180 minutes.17. The process of claim 13 , wherein the compound of formula I is included in the reaction vessel prior to the introduction of either the first feedstream or the second feedstream.18. The process of claim 11 , wherein the reaction vessel is cooled to about 2° C. to about 20° C.19. The process of claim ...

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19-07-2018 дата публикации

High Stability Lubricating Oil Base Stocks and Processes for Preparing the Same

Номер: US20180201858A1
Автор: Lewis Kyle G.
Принадлежит:

Compounds having the formula (F-I) below are provided herein: 2. The lubricant base stock of claim 1 , wherein Ris hydrogen.3. The lubricant base stock of claim 1 , wherein Ris a C-Calkyl group.4. The lubricant base stock of claim 1 , wherein Ris a C-Clinear alkyl group.5. The lubricant base stock of claim 1 , wherein:{'sup': '2', 'sub': 4', '30, 'Ris a C-Clinear alkyl group.'}6. The lubricant base stock of claim 5 , wherein:{'sup': '2', 'Ris a branched alkyl group represented by formula (F-II), and one of the following conditions is met{'sup': 5', '6, 'sub': 1', '30, '(i) at least 50% of Rare hydrogen, and at least 50% of Rare independently a C-Clinear alkyl group; and'}{'sup': 5', '6, 'sub': 1', '30, '(ii) at least 50% of Rare independently a C-Clinear alkyl group, and at least 50% of Rare hydrogen.'}7. The lubricant base stock of claim 1 , wherein among all Rand R claim 1 , at least 50% by mole are independently C-Clinear alkyl groups.8. The lubricant base stock of claim 1 , wherein n is from 50 to 500.9. The lubricant base stock of claim 1 , wherein n is from 2 to 50.10. The lubricant base stock of claim 1 , wherein Rand Rare the same or different and are each independently a C-Clinear alkyl group.11. The lubricant base stock of claim 1 , wherein Rand Rare the same or different and are each independently a C-Clinear alkyl group.12. The lubricant base stock of claim 1 , wherein Ris a C-Clinear alkyl claim 1 , preferably C-Clinear alkyl group.13. The lubricant base stock of claim 1 , wherein Ris an aromatic group.14. The lubricant base stock of claim 6 , having an isotacticity of at least about 60 mol % claim 6 , preferably at least about 75 mol % claim 6 , more preferably at least about 80 mol %.15. The lubricant base stock of which has a rotating pressure vessel oxidation test (RPVOT) break time of at least about 200 minutes.17. The process of claim 16 , wherein the olefin comprises at least about 75 wt % of the compound of formula (F-Ia) where Ris hydrogen.18. ...

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09-10-2014 дата публикации

PROCESS FOR THE PREPARATION OF SULFONAMIDE COMPOUNDS

Номер: US20140303402A1
Принадлежит: DIPHARMA FRANCIS S.R.L.

Process for the preparation of known sulfonamides having antibacterial activity applicable on industrial scale, which allows their production in high yields and purity, comprising in particular the step of nucleophile aromatic substitution and oxidation in suitable conditions. 2. A process according to claim 1 , wherein the base is an inorganic base claim 1 , selected from the group comprising sodium hydroxide claim 1 , potassium hydroxide claim 1 , sodium carbonate and potassium carbonate.3. Process according to wherein the base is potassium carbonate.4. A process according to claim 1 , wherein the solvent is water or a mixture thereof with one or more claim 1 , preferably one or two claim 1 , solvents miscible with water claim 1 , selected for example among tetrahydrofuran claim 1 , dioxane and a C-Calkanol.5. Process according to wherein the solvent is a water/isopropanol mixture.7. A process according to claim 6 , wherein hydrogen peroxide is a 30-35% solution thereof and is typically used in an amount comprised between about 2.0 and about 4.35 equivalents.8. A process according to wherein the tungstate salt is sodium tungstate dihydrate comprised in an amount of about 0.5% to about 0.05% molar.9. A process according to claim 6 , wherein the acid is a mineral acid claim 6 , selected from the group comprising hydrochloric acid claim 6 , sulfuric acid and phosphoric acid; or an organic acid selected from the group comprising acetic acid claim 6 , methanesulphonic acid and a phosphonic acid claim 6 , in particular phenylphosphinic acid; and the reaction is carried out at a pH ranging from about 1 and about 6.10. A process according to each of claims 6 , wherein the oxidation is carried out in a monophasic system claims 6 , using 30% hydrogen peroxide in glacial acetic acid as oxidizing agent claims 6 , at a pH lower than 2 claims 6 , sodium tungstate dihydrate in an amount of about 0.1 molar claims 6 , and at a temperature comprised between about 90 and about 95° C ...

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09-07-2020 дата публикации

CATALYST AND PROCESS FOR REMOVING MERCAPTANS FROM HYDROCARBON STREAMS

Номер: US20200216763A1
Принадлежит: EVONIK OPERATIONS GMBH

The invention relates to a catalyst for a process for removing mercaptans and optionally disulfides (if present) from hydrocarbon streams, in particular C4 streams, in the presence of higher dienes, in particular C5 dienes. At the same time, the invention also relates to a process for removing mercaptans and disulfides (if present) from hydrocarbon streams, in particular C4 streams, in one embodiment in the presence of 1-butene, by thioetherification of the mercaptans with polyunsaturated hydrocarbons, wherein the process is carried out in a reactor with addition of hydrogen in the presence of higher dienes, in particular Cdienes. 1. A heterogeneous catalyst for removing mercaptans and optionally disulfides from hydrocarbon streams in the presence of higher dienes , wherein the catalyst is a shell catalyst , wherein the catalyst comprises alumina , silica gel or activated carbon as support material and palladium and platinum as catalytically active metals , wherein the catalyst has a palladium concentration of up to 2.0% by weight , a platinum concentration of up to 1.0% by weight and a total metal dispersion of at least 70%.2. The heterogeneous catalyst according to claim 1 , wherein the catalyst has a palladium concentration of up to 1.0% by weight.3. The heterogeneous catalyst according to claim 1 , wherein the catalyst has a platinum concentration of up to 0.5% by weight.4. The heterogeneous catalyst according to claim 1 , wherein the catalyst has a total metal surface area of at least 0.5 m/g.5. The heterogeneous catalyst according to claim 1 , wherein the catalyst has a total metal dispersion of at least 80%.6. A process for removing mercaptans and disulfides (if present) from hydrocarbon streams in the presence of at least one higher diene by thioetherification of the mercaptans with polyunsaturated hydrocarbons claim 1 , wherein the process is carried out in a reactor with addition of hydrogen claim 1 , wherein the molar ratio of hydrogen to polyunsaturated ...

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23-07-2020 дата публикации

COMPOUNDS, REAGENTS, AND USES THEREOF

Номер: US20200231541A1
Автор: ZHANG Qibo
Принадлежит:

The present invention provides a compound of formula (I), formula (II), formula (III), (IV) or a salt thereof, compositions and methods of making the compound, methods and reagents for measuring the compound, and kits using the same. The use of a compound of formula (I), formula (II), formula (III), or formula (IV) for assessing or monitoring kidney function in a subject, determining predisposition to developing reduced kidney function, classifying a subject according to level of kidney function, and diagnosing or monitoring chronic kidney disease is also described. 4. (canceled)5. The compound of claim 1 , wherein the compound is isotopically labeled.6. (canceled)814-. (canceled)16. The method of claim 15 , further comprising calculating the eGFR using an algorithm that utilizes the determined level of the compound.17. The method of claim 16 , wherein the calculated eGFR is used for (i) assessing kidney function in the subject; (ii) determining predisposition to developing reduced kidney function in the subject; (iii) classifying the subject according to level of kidney function; (iv) monitoring kidney function in the subject; (v) diagnosing chronic kidney disease (CKD) or acute kidney injury (AKI) in the subject; or (vi) monitoring the progression or regression of CKD or AKI.1822-. (canceled)23. The method of claim 16 , wherein the eGFR is calculated utilizing one or more additional compounds selected from pseudouridine claim 16 , N-acetylthreonine claim 16 , 2-C-mannopyranosyl tryptophan claim 16 , N-acetylserine claim 16 , N-acetylalanine claim 16 , N6-carbamoylthreonyl adenosine claim 16 , 4-acetamidobutanoate claim 16 , erythritol claim 16 , myo-inositol claim 16 , erythronate claim 16 , urea claim 16 , arabitol claim 16 , N2 claim 16 ,N2-dimethylguanosine claim 16 , N1-methyladenosine claim 16 , 3-methylglutarylcarnitine claim 16 , S-adenosylhomocysteine claim 16 , N-acetylmethionine claim 16 , N6-acetyllysine claim 16 , kynurenine claim 16 , arabonate claim ...

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27-08-2020 дата публикации

METHODS FOR THE TREATMENT OF CYSTEAMINE SENSITIVE DISORDERS

Номер: US20200268692A1
Принадлежит:

The invention features methods for the treatment of cystinosis and other cysteamine sensitive disorders in a subject including administration of a disulfide convertible to cysteamine in vivo. The methods can include the separate administration of a reducing agent to the subject to increase the bioavailablity and extend the plasma pharmacokinetic profile of the cysteamine produced following administration of the disulfide. The methods permit sustained cysteamine plasma concentrations in a subject. 2. The method of claim 1 , wherein within 2 hours of the administering of the dose no reducing agent is administered to the subject.3. The method of or claim 1 , wherein between 2 hours and 8 hours after the administering of the dose a reducing agent is administered to the subject.4. The method of claim 3 , wherein the reducing agent is selected from glutathione claim 3 , glutathione diethyl ester claim 3 , gamma glutamylcysteine claim 3 , dihydrolipoic acid claim 3 , N-acetylcysteine claim 3 , homocysteine claim 3 , pantetheine claim 3 , 4-phosphopantetheine claim 3 , dephospho-coenzyme A claim 3 , coenzyme A claim 3 , vitamin E claim 3 , and ascorbic acid.5. The method of any one of - claim 3 , wherein the compound 1 claim 3 , or a pharmaceutically acceptable salt thereof claim 3 , is formulated for immediate release.6. The method of any one of - claim 3 , wherein the compound 1 claim 3 , or a pharmaceutically acceptable salt thereof claim 3 , is formulated as a powder and the dosage form is a sachet.7. The method of any one of - claim 3 , further comprising administering to the subject a pantetheinase inducing agent selected from the group comprising PPAR alpha agonists claim 3 , PPAR gamma agonists claim 3 , or Nrf2 inducing agents.8. The method of claim 7 , wherein the pantetheinase inducing agent is an isothiocyanate present in cruciferous vegetables claim 7 , a sulforaphane claim 7 , S-allyl cysteine claim 7 , diallyl trisulfide claim 7 , oxidized fat claim 7 , omega ...

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24-09-2020 дата публикации

METHOD FOR PREPARING 3-METHYLTHIOPROPIONALDEHYDE

Номер: US20200299232A1
Принадлежит:

The present invention relates to a method for preparing 3-methylthiopropionaldehyde by reacting methyl mercaptan with acrolein, in which deviations in the stoichiometry of methyl mercaptan to acrolein in the reaction to give 3-methylthiopropionaldehyde are compensated for by supplying or by forming 1,3-bis(methylthio)-1-propanol, and also to the use of 1,3-bis(methylthio)-1-propanol as a storage form of methyl mercaptan and/or 3-methylthiopropionaldehyde. 1: A method for continuously preparing 3-methylthiopropionaldehyde , the method comprising:reacting methyl mercaptan with acrolein, to obtain the 3-methylthiopropionaldehyde,wherein deviations in a stoichiometry of the methyl mercaptan to the acrolein during the reacting to obtain the 3-methylthiopropionaldehyde are compensated for by supplying or forming 1,3-bis(methylthio)-1-propanol, andwhereinif the methyl mercaptan is present in excess with respect to the acrolein, an excess methyl mercaptan is converted to the 1,3-bis(methylthio)-1-propanol with the 3-methylthiopropionaldehyde,orif the acrolein is present in excess with respect to the methyl mercaptan, the 1,3-bis(methylthio)-1-propanol is supplied to the reacting of the methyl mercaptan with the acrolein.2: The method according to claim 1 , wherein a molar ratio of the methyl mercaptan to the 3-methylthiopropionaldehyde during the reacting to obtain the 1 claim 1 ,3-bis(methylthio)-1-propanol is from 0.1:1 (mol/mol) to 1:1 (mol/mol).3: The method according to claim 1 , wherein an excess acrolein is present and the excess acrolein is reacted with the 1 claim 1 ,3-bis(methylthio)-1-propanol to obtain the 3-methylthiopropionaldehyde.4: The method according to claim 1 , wherein a portion of a stream comprising the methyl mercaptan is branched off before the reacting to obtain the 3-methylthiopropionaldehyde and is supplied to the forming of the 1 claim 1 ,3-bis(methylthio)-1-propanol by reacting the 3-methylthiopropionaldehyde with the methyl mercaptan.5: The ...

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26-11-2015 дата публикации

PROCESSES FOR THE PREPARATION OF PESTICIDAL COMPOUNDS

Номер: US20150336929A1
Принадлежит:

The present application provides processes for making pesticidal compounds and compounds useful both as pesticides and in the making of pesticidal compounds. 119.-. (canceled)21. The process of claim 20 , wherein the halopyridine is 3-iodopyridine or 3-bromopyridine.22. The process of claim 20 , wherein the copper salt is selected from the group consisting of copper(I) chloride claim 20 , copper(II) chloride claim 20 , and copper(I) iodide.23. The process of claim 22 , wherein the copper salt is copper(I) chloride.24. The process of claim 20 , wherein the base is potassium carbonate.25. The process of claim 20 , wherein the amine is N claim 20 ,N′-dimethylethane-1 claim 20 ,2-diamine.26. The process of claim 20 , wherein the step of reacting is carried out in a polar solvent.27. The process of claim 26 , wherein the polar solvent is selected from the group consisting of acetonitrile (MeCN) claim 26 , dioxane claim 26 , and N claim 26 ,N-dimethylformamide.28. The process of claim 20 , wherein the step of reacting is carried out at a temperature between about 50° C. and about 110° C.29. The process of claim 20 , wherein Ris C-Chaloalkyl.30. The process of claim 29 , wherein Ris —CHCHCF.31. The process of claim 20 , wherein Ris C-Calkyl-C-Chalocycloalkyl.32. The process of claim 31 , wherein Ris —CH(2 claim 31 ,2-difluorocyclopropyl).34. The process of claim 33 , wherein Ris C-Chaloalkyl.35. The process of claim 34 , wherein Ris —CHCHCF.36. The process of claim 33 , wherein Ris C-Calkyl-C-Chalocycloalkyl.37. The process of claim 36 , wherein Ris —CH(2 claim 36 ,2-difluorocyclopropyl).39. The process of claim 38 , wherein the step of preparing is carried out in the presence of 2 claim 38 ,2-dimethoxy-2-phenylacetophenone initiator and long wavelength UV light claim 38 , in an inert organic solvent.40. The process of claim 39 , wherein the amount of 2 claim 39 ,2-dimethoxy-2-phenylacetophenone initiator is from about 1 to about 10 mole percent.41. The process of claim 40 ...

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16-11-2017 дата публикации

Flow Reactor Vessels and Reactor Systems

Номер: US20170326525A1
Принадлежит:

The present invention discloses high pressure flow reactor vessels and associated systems. Also disclosed are processes for producing thiol compounds and sulfide compounds utilizing these flow reactor vessels. 1. A flow reactor vessel comprising:(a) a reaction chamber comprising a reactor wall, an inlet for a fluid, and an outlet;(b) a tube positioned within the reaction chamber, a flow path for the fluid including a region between an outer surface of the tube and an inner surface of the reactor wall; and(c) an electromagnetic radiation source enclosed within the tube, the electromagnetic radiation source configured to deliver radiation into the fluid in the flow path;wherein an average linear distance between the outer surface of the tube and the inner surface of the reactor wall is less than or equal to 10 cm.2. The flow reactor vessel of claim 1 , wherein:the tube is a quartz tube; andthe region between the outer surface of the tube and the inner surface of the reactor wall is an annular region.35-. (canceled)6. The flow reactor vessel of claim 1 , wherein the flow reactor vessel is configured for an operating pressure of at least 1.72 MPa.7. The flow reactor vessel of claim 1 , wherein:a wall thickness of the tube is at least 1 mm; andthe flow reactor vessel is configured for an operating pressure in a range from 1.72 to 6.90 MPa.8. The flow reactor vessel of claim 1 , wherein the reaction chamber is configured to create turbulent flow in the flow path.922-. (canceled)23. A process for forming a thiol compound claim 1 , the process comprising:{'sub': '2', 'claim-text': (a) a reaction chamber comprising a reactor wall, an inlet for the fluid, and an outlet;', '(b) a tube positioned within the reaction chamber, a flow path for the fluid including a region between an outer surface of the tube and an inner surface of the reactor wall; and', '(c) an electromagnetic radiation source enclosed within the tube, the electromagnetic radiation source configured to deliver ...

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23-11-2017 дата публикации

PROCESS FOR PREPARING ESTERS OF LACTIC ACID, AND 2-HYDROXY-3-BUTENOIC ACID OR ALPHA-HYDROXY METHIONINE ANALOGUES FROM SUGARS

Номер: US20170334844A1
Принадлежит: Haldor Topsoe A/S

A continuous flow process for the preparation of one or more esters of lactic acid and 2-hydroxy-3-butenoic acid or α-hydroxy methionine analogues from a sugar in the presence of a solid Lewis acid catalyst and a solvent comprising an organic solvent and water. The invention provides a means for stabilizing a Lewis acid catalyst for use in a continuous reaction process wherein the water is present in an amount of up to or equal to 10 vol. % of the organic solvent. 1. A continuous flow process for the preparation of one or more esters of lactic acid and 2-hydroxy-3-butenoic acid or an α-hydroxy methionine analogue from a sugar in the presence of a solid Lewis acid catalyst and a solvent comprising an organic solvent and water , wherein the water is present in an amount of up to or equal to 10 vol. % of the organic solvent.2. A process according to claim 1 , wherein a compound comprising sulfur is present in addition to a solid Lewis acid catalyst and a solvent comprising an organic solvent and water if an α-hydroxy methionine analogue is desired.3. A process according to claim 2 , wherein the compound comprising sulfur is selected from the group consisting of C-Calkyl thiol claim 2 , C-Calkyl thiol salts claim 2 , dimethylmercaptan and dimethyl disulfide.4. A process according to claim 1 , wherein the yield of the one or more lactic acid esters decreases by up to 0.25% per hour on stream on average.5. A process according to claim 1 , wherein the yield of the one or more lactic acid esters decreases by up to 0.10% per hour on average.6. A process according to claim 1 , wherein the yield of the one or more lactic acid esters decreases by up to 5% after 50 hours on stream.7. A process according to claim 1 , wherein the yield of the one or more lactic acid esters is greater than 40% after 50 hours on stream.8. A process according to claim 1 , wherein the solid Lewis acid catalyst is calcined after 450 hours.9. A process according to claim 1 , wherein the solid Lewis acid ...

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26-11-2020 дата публикации

THIOL COMPOUNDS, SYNTHESIS METHOD THEREFOR, AND UTILIZATION OF SAID THIOL COMPOUNDS

Номер: US20200369606A1
Принадлежит: SHIKOKU CHEMICALS CORPORATION

The purpose of the present invention is to provide: novel thiol compounds; a method for synthesizing said thiol compounds; curing agents containing said thiol compounds; resin compositions containing said thiol compounds and an epoxy compound; and resin compositions containing said thiol compounds and an ene compound having a carbon-carbon double bond in a molecule. Furthermore, the purpose of the present invention is to provide adhesives and sealants having these resin compositions as ingredients. The thiol compounds of the present invention are represented by chemical formula (I) to chemical formula (VII). 6. A curing agent comprising the thiol compound as described in .7. A resin composition comprising the thiol compound as described in and an epoxy compound.8. The resin composition according to claim 7 , comprising an amine as a curing accelerator.9. The resin composition according to claim 7 , comprising a reaction product between an epoxy compound and an amine claim 7 , as a curing accelerator.10. The resin composition according to claim 7 , comprising a reaction product between a compound having one or more isocyanate group in the molecule and a compound having at least one of a primary amino group and a secondary amino group in the molecule claim 7 , as a curing accelerator.11. A resin composition comprising the thiol compound as described in and an enic compound having a carbon-carbon double bond in the molecule.12. An adhesive comprising the resin composition as described in as a component.13. A sealant comprising the resin composition as described in as a component.14. An adhesive comprising the resin composition as described in as a component.15. A sealant comprising the resin composition as described in as a component. The present invention relates to a new thiol compound, a synthesis method of the thiol compound, and utilization of the thiol compound.Compounds having plural thiol groups in the molecule have been known as a curing agent of an epoxy ...

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17-11-2022 дата публикации

PROCESS FOR THE CO-PRODUCTION OF ALKYL MERCAPTAN AND DIALKYL DISULFIDE FROM ALCOHOL

Номер: US20220363631A1
Принадлежит: Arkema France

The invention relates to a process for the co-production of alkyl mercaptan and of dialkyl disulfide, comprising the following successive steps: 1. Process for the co-production of alkyl mercaptan and of dialkyl disulfide , comprising the following successive steps:{'sub': 1', '4', '2, 'a) reaction of a C-Calcohol in the presence of hydrogen sulfide (HS) to form a stream (M) comprising an alkyl mercaptan, water, and optionally unreacted hydrogen sulfide,'}b) purification of the stream (M) to obtain a stream (N) enriched in alkyl mercaptan,c) recovery of a first portion of the stream (N) including the alkyl mercaptan purified in step b),d) oxidation with sulfur of the second portion of the stream (N) of alkyl mercaptan, to form a stream (O) comprising a dialkyl disulfide, hydrogen sulfide, and optionally unreacted alkyl mercaptan,e) purification of the stream (O) to separate, on the one hand, the enriched dialkyl disulfide and, on the other hand, the hydrogen sulfide and optionally the alkyl mercaptan that has not reacted in step d),f) recycling of the hydrogen sulfide and optionally of the alkyl mercaptan isolated in step e) into the stream (M) obtained from step a),g) recovery of the dialkyl disulfide isolated in step e).2. Process according to claim 1 , wherein the recycling step f) leads the stream to be recycled before the purification step b) claim 1 , which removes the hydrogen sulfide from the stream (M) to be purified.3. Process according to claim 1 , wherein all of the stream including the hydrogen sulfide claim 1 , and optionally the alkyl mercaptan that has not reacted in step d) claim 1 , is recycled into the stream (M) obtained from step a).4. Process according to claim 1 , wherein the C-Calcohol is chosen from methanol claim 1 , ethanol claim 1 , n-propanol claim 1 , isopropanol claim 1 , n-butanol claim 1 , sec-butanol and tert-butanol.5. Process according to claim 1 , wherein the hydrogen sulfide/alcohol mole ratio of step a) is between 0.1 and 100.6 ...

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07-12-1999 дата публикации

Continuous hydrolysis process for the preparation of 2-hydroxy-4-methylthiobutanoic acid

Номер: US5998664A
Принадлежит: Novus International Inc

A continuous process for the preparation of 2-hydroxy-4-methylthiobutanoic acid which includes introducing sulfuric acid into a first reactor including a continuous stirred tank reactor and introducing 2-hydroxy-4-methylthiobutanenitrile into the first reactor. 2-hydroxy-4-methylthiobutanenitrile is continually hydrolyzed within the first reactor to produce an intermediate aqueous hydrolysis solution containing 2-hydroxy-4-methylthiobutanamide. The intermediate aqueous hydrolysis solution is continuously introduced into a plug flow reactor. 2-hydroxy-4-methylthiobutanamide is continually hydrolyzed within the plug flow reactor to produce an aqueous hydrolyzate product solution containing 2-hydroxy-4-methylthiobutanoic acid. 2-hydroxy-4-methylthiobutanoic acid is recovered from the aqueous hydrolyzate product solution.

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28-02-2017 дата публикации

Thioetherification of mercaptans in c4-hydrocarbon mixtures

Номер: MY160118A
Принадлежит: EVONIK DEGUSSA GmbH

THE INVENTION RELATES TO A PROCESS FOR THE THIOETHERIFICATION OF MERCAPTANS WITH MULTIPLY UNSATURATED HYDROCARBONS, CARRIED OUT IN A REACTOR WITH ADDITION OF HYDROGEN USING A HETEROGENEOUS CATALYST AND IN THE PRESENCE OF 1-BUTENE. IT IS AN OBJECT OF THE INVENTION TO CONFIGURE A PROCESS OF THIS TYPE IN SUCH A WAY THAT THE VALUE DERIVED FROM THE CRUDE C4 STREAM USED IS INCREASED. THIS OBJECT IS ACHIEVED BY THE HYDROGEN BEING INTRODUCED INTO THE REACTION IN SUCH A WAY THAT THE MOLAR RATIO OF HYDROGEN TO MULTIPLY UNSATURATED HYDROCARBONS IS NOT MORE THAN ONE. (FIGURE 1)

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14-04-2015 дата публикации

Tioeterificacion de mercaptanos en mezclas de hidrocarburos c4.

Номер: MX2015000363A
Принадлежит: Evonik Industries AG

La invención se refiere a un proceso para la tioeterificación de mercaptanos con hidrocarburos poliinsaturados, llevado a cabo en un reactor con adición de hidrógeno, utilizándose un catalizador heterogéneo y en la presencia de 1-buteno. Es un objetivo de la invención configurar un proceso de este tipo de tal manera que el valor derivado de la corriente de C4 bruto se incremente. Este objetivo se logra por el hecho de introducir el hidrógeno en la reacción de tal manera que la relación molar entre hidrógeno y los hidrocarburos poliinsaturados no sea mayor de uno.

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05-01-1999 дата публикации

Continuous hydrolysis process for preparing 2-hydroxy-4-methylthiobutanioc acid or salts thereof

Номер: US5856567A
Принадлежит: Novus International Inc

A continuous process for the preparation of 2-hydroxy-4-methylthiobutanoic acid or a salt thereof which includes introducing an aqueous mineral acid into a nitrile hydrolysis reactor including a continuous stirred tank reactor and introducing 2-hydroxy-4-methylthiobutanenitrile into the nitrile hydrolysis reactor. 2-hydroxy-4-methylthiobutanenitrile is continually hydrolyzed within the nitrile hydrolysis reactor to produce a nitrile hydrolysis reactor product stream containing 2-hydroxy-4-methylthiobutanamide. The nitrile hydrolysis reactor product stream is continuously introduced into an amide hydrolysis flow reactor. 2-hydroxy-4-methylthiobutanamide is continually hydrolyzed within the amide hydrolysis flow reactor to produce an aqueous hydrolyzate product containing 2-hydroxy-4-methylthiobutanoic acid. 2-hydroxy-4-methylthiobutanoic acid is recovered from the aqueous hydrolyzate product.

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10-09-2016 дата публикации

Тиоэтерификация меркаптанов в смесях углеводородов с4

Номер: RU2015104808A
Принадлежит: Евоник Индастриз Аг

1. Способ тиоэтерификации меркаптанов полиненасыщенными углеводородами, осуществляемый в реакторе при подаче водорода с применением гетерогенного катализатора и в присутствии 1-бутена, отличающийся тем, что молярное соотношение водорода и полиненасыщенных углеводородов максимально равно единице.2. Способ по п. 1, отличающийся тем, что молярное соотношение водорода и полиненасыщенных углеводородов находится в интервале от 0,01 до 0,8 и предпочтительно в интервале от 0,1 до 0,5.3. Способ по п. 1 или 2, отличающийся тем, что осуществляют тиоэтерификацию меркаптанов полиненасыщенными углеводородами, выбранными из группы, в которую входят 1,3-бутадиен, бут-3-ен-1-ин и 1,2-бутадиен.4. Способ по п. 1 или 2, отличающийся тем, что осуществляют тиоэтерификацию этантиола и/или метантиола полиненасыщенными углеводородами.5. Способ по п. 1 или 2, отличающийся тем, что его осуществляют в присутствии монооксида углерода, причем содержание монооксида углерода в потоке, входящем в реактор, составляет менее 20 млнв расчете на массу входящего потока.6. Способ по п. 1 или 2, отличающийся тем, что гетерогенный катализатор содержит металл группы VIII периодической системы элементов.7. Способ по п. 6, отличающийся тем, что катализатор представляет собой оболочечный катализатор, содержащий оксид алюминия в качестве носителя и палладий в качестве каталитически активного металла.8. Способ по п. 1 или 2, отличающийся тем, что температура на входе потока в реактор находится в интервале от 0 до 180°С, предпочтительно в интервале от 60 до 150°С и наиболее предпочтительно в интервале от 80 до 130°С.9. Способ по п. 1 или 2, отличающийся тем, что его осуществляют как жидкофазный способ так, чтобы водород был полностью растворен в жидкой фазе.10. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК C07C 319/18 (13) 2015 104 808 A (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2015104808, 25.06.2013 (71) Заявитель(и): ЕВОНИК ИНДАСТРИЗ АГ (DE) ...

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03-05-2022 дата публикации

一种可γ射线辐照降解的热固性环氧树脂的制备及降解方法

Номер: CN113527637B
Автор: 刘丽, 胡桢, 许宁觌, 黄玉东
Принадлежит: Harbin Institute of Technology

一种可γ射线辐照降解的热固性环氧树脂的制备及降解方法,属于γ射线辐照降解环氧树脂技术领域。本发明要解决现有环氧树脂材料降解条件苛刻,同时难以兼顾环氧树脂优异使用性能与降解性能的技术问题。本发明方法为γ射线辐照降解;该降解方法应用于降解热固性环氧树脂和环氧树脂复合材料。本发明通过在环氧树脂固化剂结构中引入稳定的共轭结构连接的N—N键或N—O键,通过交联固化反应将其引入到环氧树脂交联结构中,使得交联网络中的N—N键或者N—O键在γ射线辐照条件下优先断裂,达到降解热固性环氧树脂的目的。本发明使用的γ射线辐照降解方法真正的实现了零能耗,无需高温、高压、强酸、强碱等苛刻降解条件。

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30-12-2013 дата публикации

Method for modification of organic molecules

Номер: SG194727A1
Автор: Chuan-Fa Liu, Fupeng Li
Принадлежит: Univ Nanyang Tech

The present invention is directed to a method of alkylating a thiol group (R-S-H) or seleno group (R-Se-H) in a target molecule wherein the method comprises: reacting a target molecule comprising at least one thiol group with a compound of formula (I) or (II): wherein R is an acetyl group or any other acyl group or is a group comprising any one of: or wherein R in formula (II) can also be an alkyl group; and wherein R' is selected from a group consisting of a hydrogen, a methyl group and an ethyl group.

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29-06-2020 дата публикации

Flow reactor vessels and reactor systems

Номер: MY175457A
Принадлежит: Chevron Phillips Chemical Co LP

The present invention discloses high pressure flow reactor vessels and associated systems. Also disclosed are processes for producing thiol compounds and sulfide compounds utilizing these flow reactor vessels. The most illustrative 10 drawing: FIG. 1.

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22-03-2017 дата публикации

Processes for the preparation of pesticidal compounds

Номер: EP3057427A4
Принадлежит: DOW AGROSCIENCES LLC

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14-02-2018 дата публикации

Method for producing acrolein from glycerine

Номер: RU2644767C2

FIELD: chemistry; technological processes. SUBSTANCE: invention refers to the method for preparation of acrolein from glycerol. Method consists in dehydrogenation of glycerol in the presence of the MWOA catalyst, where the MWO is the mixture of simple oxides and/or mixed tungsten oxides and at least one metal M, which is selected from zirconium, silicon, titanium, aluminum and yttrium, and A is one or more Lewis bases, the mentioned Lewis base has the following formula B(R 1 )p(R 2 )q(R 3 )r, where B is the element, which is selected from C, S, P, O, N and halides, R 1 , R 2 and R 3 independently from each other, are H, C 1 -C 6- alkyl group, O, OH or OR, where R is the C 1 -C 6 -alkyl group and the sum of p, q and r is from 0 up to 4. In addition, the invention refers to the method for the preparation of 3-(methylthio)-propionaldehyde, 2-hydroxy-4-methylthiobutyronitrile, methionine, 2-hydroxy-4-methylthiobutanoic acid, its esters and metallic chelates, 2-oxo-4-methylthiobutanoic acid, its esters and metallic chelates, as well as the use of the catalyst for the conversion of glycerol into acrolein. EFFECT: proposed method for the production of acrolein allows to obtain the desired product with high selectivity using the stable and regenerable catalyst. 19 cl, 2 tbl, 9 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК C07C 45/52 (2006.01) C07C 47/22 (2006.01) C07C 319/18 (2006.01) C07C 323/22 (2006.01) C07C 319/12 (2006.01) C07C 323/25 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА C07C 323/58 (2006.01) ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ C07C 323/52 (2006.01) B01J 27/132 (2006.01) B01J 27/135 (2006.01) (12) (13) 2 644 767 C2 B01J 27/182 (2006.01) B01J 27/188 (2006.01) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C07C 45/52 (2006.01); C07C 319/18 (2006.01); C07C 319/12 (2006.01); B01J 27/132 (2006.01); B01J 27/135 (2006.01); B01J 27/182 (2006.01); B01J 27/188 (2006.01) 2015120089, 29.10.2013 (24) Дата начала отсчета срока действия патента: 29.10.2013 14.02.2018 Приоритет(ы): (30) Конвенционный ...

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27-04-2018 дата публикации

The method for preparing Pesticidal compound

Номер: CN105636444B
Принадлежит: DOW AGROSCIENCES LLC

本申请涉及有效和经济的合成化学方法,用于制备杀虫硫醚和杀虫亚砜,特别是以有效和高收率由商业可得原料制备杀虫硫醚和杀虫亚砜。此外,本申请还涉及需要用于其合成的某些新的化合物。具体而言,披露了从4‑硝基吡唑作为原料制备杀虫硫醚的方法。

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26-09-2012 дата публикации

Method for preparing acrolein from glycerol or glycerine

Номер: CN102695694A

本发明涉及由甘油或丙三醇制备丙烯醛的方法,根据该方法,甘油或丙三醇的脱水在催化剂存在情况下进行,所述催化剂包括由二氧化锆、二氧化钛或三氧化钨或这些氧化物的任何组合改性的至少一种硅石和杂多酸。该方法可用于由丙烯醛制备3-(甲硫基)丙醛(MMP)、2-羟基-4-甲硫基丁腈(HMBTN)、蛋氨酸或其类似物。

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27-01-2008 дата публикации

METHOD FOR ISOLATING METHLMERCAPTANE FROM REACTIVE GAS MIXTURES

Номер: RU2006125513A

ÐÎÑÑÈÉÑÊÀß ÔÅÄÅÐÀÖÈß RU (19) (11) 2006 125 513 (13) A (51) ÌÏÊ C07C 319/28 (2006.01) ÔÅÄÅÐÀËÜÍÀß ÑËÓÆÁÀ ÏÎ ÈÍÒÅËËÅÊÒÓÀËÜÍÎÉ ÑÎÁÑÒÂÅÍÍÎÑÒÈ, ÏÀÒÅÍÒÀÌ È ÒÎÂÀÐÍÛÌ ÇÍÀÊÀÌ (12) ÇÀßÂÊÀ ÍÀ ÈÇÎÁÐÅÒÅÍÈÅ (21), (22) Çà âêà: 2006125513/04, 30.11.2004 (71) Çà âèòåëü(è): ÄÅÃÓÑÑÀ Àà (DE) (30) Êîíâåíöèîííûé ïðèîðèòåò: 18.12.2003 DE 10359636.4 (43) Äàòà ïóáëèêàöèè çà âêè: 27.01.2008 Áþë. ¹ 3 (87) Ïóáëèêàöè PCT: WO 2005/058809 (30.06.2005) Àäðåñ äë ïåðåïèñêè: 101000, Ìîñêâà, Ì.Çëàòîóñòèíñêèé ïåð., 10, êâ.15, "ÅÂÐÎÌÀÐÊÏÀÒ", ïàò.ïîâ. È.À.Âåñåëèöêîé R U (57) Ôîðìóëà èçîáðåòåíè 1. Ñïîñîá âûäåëåíè ìåòèëìåðêàïòàíà èç ðåàêöèîííûõ ñìåñåé, îáðàçóþùèõñ ïðè êàòàëèòè÷åñêîì ïðåâðàùåíèè Í2S è ìåòàíîëà, çàêëþ÷àþùèéñ â òîì, ÷òî îòäåë þò íåïðîðåàãèðîâàâøèå H2S è ìåòàíîë, à òàêæå âîäó, ïîëó÷åííóþ â ðåàêöèîííîé ñìåñè, ïîëó÷åííûé íåî÷èùåííûé ìåòèëìåðêàïòàí ïåðåâîä ò â 3-ìåòèë ìåðêàïòîïèîíàëüäåãèä (ÌÒÏ) ïóòåì ðåàêöèè ÌÒÏ è àêðîëåèíà èëè ïåðåâîäîì â ÌÒÏ âìåñòå ñ àêðîëåèíîì â ïðèñóòñòâèè êàòàëèçàòîðà è ñ ïîìîùüþ ïåðåãîíêè îòäåë þò îò ÌÒÏ ñîåäèíåíè , ïîëó÷åííûå â ïðîöåññå ñèíòåçà ìåðêàïòàíà, åùå ïðèñóòñòâóþùèå â ðåàêöèîííîé ñìåñè. 2. Ñïîñîá ïî ï.1, â êîòîðîì äë óäàëåíè ñîåäèíåíèé äîáàâë þò èíåðòíûé àçåîòðîïîîáðàçîâàòåëü. 3. Ñïîñîá ïî ï.2, â êîòîðîì â êà÷åñòâå èíåðòíîãî àçåîòðîïîîáðàçîâàòåë èñïîëüçóþò àçîò, äèîêñèä óãëåðîäà èëè ïàð. 4. Ñïîñîá ïî ï.1, â êîòîðîì êîìïîíåíòû îòäåë þò ïðè äàâëåíèè îò 14,5 äî 72,5 psi (îò 1 äî 5 áàð) è òåìïåðàòóðå îò 90 äî 135°. 5. Ñïîñîá ïî îäíîìó èç ïï.1-4, â êîòîðîì èñïîëüçóþò äèñòèëë öèîííóþ êîëîííó ñ ýôôåêòèâíîñòüþ ìåíüøå, ÷åì 20 òåîðåòè÷åñêèõ òàðåëîê. Ñòðàíèöà: 1 RU A 2 0 0 6 1 2 5 5 1 3 A (54) ÑÏÎÑÎÁ ÂÛÄÅËÅÍÈß ÌÅÒÈËÌÅÐÊÀÏÒÀÍÀ ÈÇ ÐÅÀÊÖÈÎÍÍÛÕ ÃÀÇÎÂÛÕ ÑÌÅÑÅÉ 2 0 0 6 1 2 5 5 1 3 (86) Çà âêà PCT: EP 2004/013565 (30.11.2004) R U (85) Äàòà ïåðåâîäà çà âêè PCT íà íàöèîíàëüíóþ ôàçó: 18.07.2006 (72) Àâòîð(û): ÌÅËËÅÐ Àëåêñàíäåð (DE), ÁÅÊÊ Âîëüôãàíã (DE), ÐÀÓÒÅÍÁÅÐà Øòåôàí (DE), ÕÀÑÑÅËÜÁÀÕ Õàíñ-Éîàõèì (DE), ÒÀÓÃÍÅÐ Âîëüôãàíã (DE), ÕÀÉÍÖÅËÜ Õàðàëüä (DE), ÖÀÐÔËÜ Òåî (DE)

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27-08-1998 дата публикации

Method for uninterrupted production of 3-(methylthio)propanal

Номер: RU2118314C1

FIELD: organic chemistry. SUBSTANCE: method is carried out by contact of liquid reaction medium comprising 3-(methylthiopropanal) with origin stream of gaseous acrolein and by interaction of methyl mercaptan with acrolein. The process takes place in the presence of catalyst in the zone of gas/liquid contact. Reaction medium comprises 3-(methylthio) propanal, methylmercaptan and mentioned above catalyst. Origin stream of gaseous acrolein comprises acrolein, non-condensed gas and not more than 80 % of vapor. During mentioned above processes acrolein is converted from origin stream into reaction medium. Therein acrolein interacts with methylmercaptan to prepare liquid reaction product comprising 3-(methylthio)propanal. Non-condensed gas is separated of liquid reaction product. Then reaction product is separated into fraction and circulating fraction, the latter recycled into zone of gas/liquid contact. EFFECT: improved efficiency of the method. 27 cl, 5 dwg, 5 tbl УЗ ЕЕС ПЧ ГЭ РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (19) ВИ "” 2118 314. 13) СЛ 7 МК С 07С 325/00, 47/02, 45/45 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 96100238/04, 09.09.1993 (30) Приоритет: 08.06.1993 Ш$ 08073.763 (46) Дата публикации: 27.08.1998 (56) Ссылки: Ц5, патент, 4225516, кл. С 07 С 47102, 1980. (71) Заявитель: Новус Интернэшенэл, Инк. (1$) (72) Изобретатель: Юнг С.Хсу (ЦЭ), Деннис А.Руст (1$) (73) Патентообладатель: Новус Интернэшенэл, Инк. (1$) (54) СПОСОБ НЕПРЕРЫВНОГО ПОЛУЧЕНИЯ 3-(МЕТИЛТИО)ПРОПАНАЛЯ (57) Реферат: Способ осуществляют путем контактирования жидкой реакционной среды, содержащей 3-(метилтио)пропаналь С исходным потоком газообразного акролеина и взаимодействия метилмеркаптана С акролеином в присутствии катализатора в зоне контакта газ/жидкость, причем реакционная среда содержит 3-(метилтио) пропаналь, метилмеркаптан и катализатор для взаимодействия метилмеркаптана и акролеина, указанный исходный поток газообразного акролеина включает пары ...

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14-07-2020 дата публикации

Catalyst and process for removing mercaptans from a hydrocarbon stream

Номер: CN111408367A
Принадлежит: EVONIK OPERATIONS GMBH

本发明涉及一种催化剂,其用于在高级二烯烃(特别是C5二烯)存在下,从烃料流(特别是C4料流)中去除硫醇和任选存在的二硫化物(如果存在)的方法。同时,本发明还涉及通过用多不饱和烃将硫醇硫醚化,在一个实施方案中,在1‑丁烯的存在下,从烃料流(特别是C4料流)中去除硫醇和二硫化物(如果存在)的方法,其中该方法是在高级二烯烃(特别是C 5 二烯)存在下,在加入氢气的反应器中进行的。

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26-05-2020 дата публикации

Process for preparing DTEA HCl

Номер: US10662151B1
Принадлежит: AMSA Inc

The present invention provides an improved process for preparing DTEA HCl from decene and cysteamine HCl by using a catalyst, solvent and a co-solvent to aid the reaction and provide low temperature stabilization of the resulting product solution.

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26-04-2012 дата публикации

Method for the separation of methyl mercaptan from reaction gas mixtures

Номер: KR101139206B1
Принадлежит: 에보니크 데구사 게엠베하

본 발명은 H2S를 메탄올과 촉매적 전환시키고, 메틸 머캅탄을 부산물의 존재하에 아크롤레인과 MMP로 전환하고, 이를 분리함으로써, 수득한 반응 기체 혼합물로부터 메틸 머캅탄을 분리하기 위한 방법에 관한 것이다. 메틸 머캅탄, H2S, 메탄올, 아크롤레인

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12-05-1998 дата публикации

Method for producing 3- (methylthio) propanal

Номер: JPH10504812A

(57)【要約】 3−(メチルチオ)プロパナールの連続製造方法。液体反応媒体を、気/液接触域においてガス状アクロレイン供給流に接触させる。反応媒体は、3−(メチルチオ)プロパナール、メチルメルカプタン及びアクロレインとメチルメルカプタンとの間で反応させるための触媒を含有する。ガス状アクロレイン供給流は、アクロレイン蒸気及び非凝縮性ガスを含む。アクロレインは、供給流から反応媒体に移され、その媒体中のメチルメルカプタンと直接反応して3−(メチルチオ)プロパナールを含有する液体反応生成物を生成する。非凝縮性ガスを液体反応生成物から分離する。反応生成物を生成物フラクションと循環フラクションとに分割し、循環フラクションを気/液接触域に循環させる。

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08-02-2017 дата публикации

Process for obtaining acrolein by catalytic dehydration of glycerol or glycerin

Номер: CN103261141B
Принадлежит: Adisseo France SAS, Ecole Centrale de Lille

本发明涉及用于在酸催化剂存在下,通过甘油或丙三醇的催化脱水来获得丙烯醛的连续方法,其中所述方法包括所述催化剂的伴随性再生并且在流化床反应器中进行,所述反应器包括两个区(zone),第一区,或下部区,称为催化剂再生区,将包含氧的流态化气体引入其中,以及第二区,或上部区,称为反应区,将甘油或丙三醇引入其中并转化为丙烯醛。

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20-12-2016 дата публикации

METHOD FOR PRODUCING ACROLEIN FROM GLYCEROL

Номер: RU2015120089A

1. Способ получения акролеина из глицерина, где дегидрирование глицерина проводят в присутствии катализатора MWOA, где MWO представляет собой смесь простых оксидов и/или смешанных оксидов вольфрама и по меньшей мере одного металла М, выбранного из циркония, кремния, титана, алюминия и иттрия, и А представляет собой одно или несколько оснований Льюиса, причем упомянутое основание Льюиса имеет формулу B(R)p(R)q(R)r, где В представляет собой элемент, выбранный из С, S, Ρ, О, N и галидов, R, Rи Rнезависимо друг от друга представляют собой Н, C-С-алкильную группу, О, ОН или OR, где R представляет собой C-С-алкильную группу и сумма р, q и r составляет от 0 до 4.2. Способ по п. 1, где M представляет собой по меньшей мере два или три металла, выбранных из циркония, кремния, титана, алюминия и иттрия.3. Способ по п. 1, где А выбрано из ионов фосфата HPO , x составляет от 0 до 2, НРО, ионов бората, F, Cl, Br, I, NH, CN, ионов сульфата, ионов карбоната, ионов карбоксилата, спиртов, алкоголят-ионов, а также их смесей.4. Способ по любому из пп. 1-3, где поверхностное молярное отношение A/M составляет от 0,005 до 0,5.5. Способ по п. 4, где упомянутое поверхностное молярное отношение составляет от 0,015 до 0,09.6. Способ по п. 1 или 3, где молярное отношение W/сумма элементов М, отличная от W, составляет от 0,005 до 0,4.7. Способ по п. 6, где упомянутое молярное отношение составляет от 0,01 до 0,1.8. Способ по п. 1 или 3, где глицерин находится в водном растворе с концентрацией по меньшей мере 1 масс. %.9. Способ по п. 8, где концентрация глицерина в водном растворе составляет от 10 мас. % до 50 мас. %.10. Способ по п. 1 или 3, где катализатор восстанавливают.11. Способ производства 3-(метилтио)-пропиональдегида МТРА, 2-гидрокси-4-метилтиобутиронитрила HMTBN, метионина, 2-гидрокси-4-метилтиобутановой кислоты НМТВА, ее сложных эфиров и металлических хелатов, или РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2015 120 089 A (51) МПК C07C 45/52 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ...

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22-07-2009 дата публикации

Method for separating methyl mercaptan from reaction gas mixtures

Номер: CN100516036C
Принадлежит: Degussa GmbH

本发明涉及由H 2 S与甲醇催化转化得到的反应混合物中分离甲硫醇的方法,该方法包括用丙烯醛在副产物存在下将甲硫醇转化无MMP,并将其分离。

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27-02-2010 дата публикации

Method of producing 3-methylthiopropanal

Номер: RU2382767C2

3-Метилтиопропаналь получают способом, включающим стадию подачи в реакционную систему акролеина и метилмеркаптана одновременно или последовательно по отношению к кислотному соединению и основному соединению для проведения реакции между акролеином и метилмеркаптаном, где основное соединение используют в количестве, приблизительно равном 0,3 моля или менее на один моль кислотного соединения, где кислотное соединение представляет собой карбоновую кислоту и основное соединение представляет собой азотсодержащее органическое основание. В соответствии с настоящим изобретением получают 3-метилтиопропаналь высокого качества за счет практического исключения образования побочных продуктов, отличающихся высокими температурами кипения. 4 з.п. ф-лы. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 382 767 (13) C2 (51) МПК C07C 319/18 C07C 323/22 (2006.01) (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21), (22) Заявка: 2003128651/04, 24.09.2003 (24) Дата начала отсчета срока действия патента: 24.09.2003 (72) Автор(ы): СИОЗАКИ Тецуя (JP), ХАГА Тору (JP) (43) Дата публикации заявки: 10.04.2005 2 3 8 2 7 6 7 (45) Опубликовано: 27.02.2010 Бюл. № 6 (56) Список документов, цитированных в отчете о поиске: WO 96/40631 A1, 19.12.1996. WO 97/00858 A1, 09.01.1997. US 6,031,138, 29.02.2000. кислотного соединения, где кислотное соединение представляет собой карбоновую кислоту и основное соединение представляет собой азотсодержащее органическое основание. В соответствии с настоящим изобретением получают 3-метилтиопропаналь высокого качества за счет практического исключения образования побочных продуктов, отличающихся высокими температурами кипения. 4 з.п. ф-лы. R U 2 3 8 2 7 6 7 (54) СПОСОБ ПОЛУЧЕНИЯ 3-МЕТИЛТИОПРОПАНАЛЯ Ñòð.: 1 ru C 2 C 2 Адрес для переписки: 129090, Москва, ул. Б.Спасская, 25, стр.3, ООО "Юридическая фирма Городисский и Партнеры", пат.пов. Е.Е.Назиной (57) Реферат: 3-Метилтиопропаналь получают способом, ...

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21-05-2010 дата публикации

PROCESS FOR PRODUCING METHYLMERCAPTOPROPIONALDEHYDE AND METHIONINE FROM RENEWABLE MATERIALS

Номер: FR2938535A1
Принадлежит: Arkema France SA

La présente invention a pour objet un procédé de fabrication de méthylmercaptopropionaldéhyde (MMP) comprenant au moins les étapes suivantes : (a) la déshydratation de glycérol en acroléine à partir d'une solution aqueuse de glycérol en présence d'un catalyseur acide, (b) la purification du flux aqueux issu de l'étape (a) pour obtenir un flux d'acroléine contenant moins de 15% massique d'eau par rapport à l'acroléine, (c) la réaction du flux d'acroléine obtenu à l'étape (b) avec du méthyl mercaptan en présence d'un catalyseur, (d) éventuellement la purification du produit obtenu à l'étape (c). Le procédé de l'invention peut en outre comprendre une réaction du produit obtenu à l'étape (c) ou (d) avec de l'acide cyanhydrique, ou du cyanure de sodium au cours d'une étape (e) suivie d'une transformation ultérieure pour produire de la méthionine ou de l'hydroxyanalogue de la méthionine qui peut être alors éventuellement purifié. L'utilisation en outre de méthyl mercaptan et/ou d'acide cyanhydrique dérivé(s) de biomasse comme matières premières dans le procédé selon l'invention permet d'obtenir du MMP, de la méthionine ou de l'hydroxyanalogue de la méthionine constitués de 100% de carbone organique issu de ressources renouvelables. The subject of the present invention is a process for the manufacture of methylmercaptopropionaldehyde (MMP) comprising at least the following steps: (a) the dehydration of glycerol from acrolein from an aqueous glycerol solution in the presence of an acid catalyst, (b) ) the purification of the aqueous stream resulting from step (a) to obtain an acrolein flux containing less than 15% by weight of water relative to acrolein, (c) the reaction of the acrolein flux obtained with step (b) with methyl mercaptan in the presence of a catalyst, (d) optionally the purification of the product obtained in step (c). The process of the invention may further comprise reacting ...

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05-05-1989 дата публикации

CATALYTIC PROCESS FOR PRODUCING MERCAPTANS FROM THIOETHERS

Номер: FR2603889B1
Автор: Emmanuel Arretz
Принадлежит: Societe National Elf Aquitaine

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15-07-2010 дата публикации

Method for manufacturing methylmercaptopropionaldehyde and methionine using renewable raw materials

Номер: WO2010058129A3
Принадлежит: Arkema France

The present invention relates to a method for manufacturing methylmercaptopropionaldehyde (MMP) including at least the following steps: (a) dehydrating glycerol to acrolein from an aqueous solution of glycerol in the presence of an acid catalyst; (b) purifying the aqueous flux from step (a) to obtain a flux of acrolein containing at least 15 wt % of water relative to the acrolein; (c) causing a reaction of the acrolein flux obtained in step (b) with methylmercaptan in the presence of a catalyst; (d) optionally purifying the product obtained in step (c). The method of the invention can also include a reaction of the product obtained in step (c) or (d) with hydrocyanic acid, or sodium cyanide during a step (e) followed by a subsequent transformation to produce methionine or methionine hydroxyanalogue, which can then optionally be purified. The additional use of methylmercaptan and/or hydrocyanic acid derived from biomass as raw materials in the method according to the invention makes it possible to obtain MMP, methionine or methionine hydroxyanalogue made up of 100 % organic carbon from renewable sources.

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14-11-2008 дата публикации

PROCESS FOR THE PREPARATION OF METHIONINE FROM ACROLEIN WITHOUT ISOLATING INTERMEDIATE PRODUCTS

Номер: FR2903690B1
Автор: Claude Casse
Принадлежит: Adisseo Ireland Ltd

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15-03-1968 дата публикации

Process for the production of thioetheralcohols or thioethercarboxylic acids

Номер: FR1517363A
Автор:
Принадлежит: Badische Anilin and Sodafabrik AG, BASF SE

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30-12-2011 дата публикации

PROCESS FOR THE PRODUCTION OF METHIONINE

Номер: FR2961808A1
Принадлежит: Sumitomo Chemical Co Ltd

L'invention concerne un procédé de production de méthionine qui comprend une étape d'hydrolyse comprenant l'hydrolyse de la 5-(β-méthylmercaptoéthyl)hydantoïne , et une étape de cristallisation comprenant la cristallisation avec du dioxyde de carbone introduit dans une solution réactionnelle après l'hydrolyse, pour obtenir de la méthionine. On utilise dans l'étape de cristallisation, comme dioxyde de carbone introduit dans la solution réactionnelle d'hydrolyse, du dioxyde de carbone qui est séparé dans une section de séparation de dioxyde de carbone (15) à partir d'un gaz reformé obtenu par une réaction de reformage à la vapeur dans une section de reformage à la vapeur (13) et du dioxyde de carbone qui est séparé dans une section de séparation de gaz brûlé (17) à partir d'un gaz brûlé de combustion produit par une combustion à l'oxygène pur dans un four de chauffage d'hydrocarbure (112) et dans un four de chauffage de la réaction de reformage (132). Figure 1. The invention relates to a process for the production of methionine which comprises a hydrolysis step comprising the hydrolysis of 5- (β-methylmercaptoethyl) hydantoin, and a crystallization step comprising crystallization with carbon dioxide introduced into a reaction solution. after hydrolysis, to obtain methionine. In the crystallization step, as carbon dioxide introduced into the hydrolysis reaction solution, carbon dioxide is used which is separated in a carbon dioxide separation section (15) from a reformed gas obtained by a steam reforming reaction in a steam reforming section (13) and carbon dioxide which is separated in a flue gas separation section (17) from a combustion flue gas produced by a combustion with pure oxygen in a hydrocarbon heating furnace (112) and in a heating furnace of the reforming reaction (132). Figure 1.

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01-10-2020 дата публикации

Chiral trifluoromethylated monoterpene thioacetates and pinhole thiols

Номер: RU2733369C1

Настоящее изобретение относится к области органической химии, а именно к хиральному трифторметилированному монотерпенову тиоацетату структурной формулы (1) и тиолу структурной формулы (2) на основе вербенона, полученные в виде индивидуальных диастереомеров: Технический результат: предложены новые органические соединения, которые могут быть использованы в органическом синтезе энантиомерно-чистых биологически активных веществ в качестве индукторов хиральности и в фармацевтической промышленности в качестве интермедиатов в синтезе лекарственных препаратов. 2 пр. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 733 369 C1 (51) МПК C07C 323/17 (2006.01) C07C 319/00 (2006.01) C07C 319/18 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C07C 323/17 (2020.02); C07C 319/00 (2020.02); C07C 319/18 (2020.02) (21)(22) Заявка: 2020106693, 15.01.2020 (24) Дата начала отсчета срока действия патента: Дата регистрации: 01.10.2020 (45) Опубликовано: 01.10.2020 Бюл. № 28 (54) Хиральные трифторметилированные монотерпеновые тиоацетаты и тиолы пинанового ряда (57) Реферат: Настоящее изобретение относится к области Технический результат: предложены новые органической химии, а именно к хиральному органические соединения, которые могут быть трифторметилированному монотерпенову использованы в органическом синтезе тиоацетату структурной формулы (1) и тиолу энантиомерно-чистых биологически активных структурной формулы (2) на основе вербенона, веществ в качестве индукторов хиральности и в полученные в виде индивидуальных фармацевтической промышленности в качестве диастереомеров: интермедиатов в синтезе лекарственных препаратов. 2 пр. R U 2 7 3 3 3 6 9 (56) Список документов, цитированных в отчете о поиске: WO 2011022191 A1, 24.02.2011. US 9278925 B2, 08.03.2016. MARTINEZ-RAMOS F. et al., Highly diastereoselective nucleophilic additions using a novel myrtenal-derived oxathiane as a chiral auxiliary. Tetrahedron Asymmetry, 2001, v. 12, p. 3095-3103 ...

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23-12-2011 дата публикации

PROCESS FOR THE PREPARATION OF ACROLEIN FROM GLYCEROL OR GLYCERIN

Номер: FR2961507A1

L'invention concerne un procédé de préparation d'acroléine à partir de glycérol ou de glycérine, selon lequel on réalise la déshydratation du glycérol ou glycérine en présence d'un catalyseur consistant en au moins d) un oxyde de silicium, un oxyde de zirconium et au moins un oxyde de métal M, le dit métal étant choisi parmi le tungstène, le cérium, le manganèse, le niobium, le tantale, le vanadium et le titane, f) un oxyde de titane, un oxyde de zirconium et au moins un oxyde de métal M, le dit métal étant choisi parmi le tungstène, le cérium, le manganèse, le niobium, le tantale, le vanadium et le silicium. Ce procédé peut être utilisé pour la fabrication de l'aldéhyde-3-(méthylthio)propionique (MMP), du 2-hydroxy-4méthylthiobutyronitrile (HMTBN), de la méthionine et de ses analogues, à partir d'acroléine. The invention relates to a process for the preparation of acrolein from glycerol or glycerin, wherein the dehydration of glycerol or glycerin is carried out in the presence of a catalyst consisting of at least d) a silicon oxide, a zirconium oxide and at least one metal oxide M, said metal being selected from tungsten, cerium, manganese, niobium, tantalum, vanadium and titanium, f) titanium oxide, zirconium oxide and at least one an oxide of metal M, said metal being selected from tungsten, cerium, manganese, niobium, tantalum, vanadium and silicon. This process can be used for the manufacture of aldehyde-3- (methylthio) propionic acid (MMP), 2-hydroxy-4-methylthiobutyronitrile (HMTBN), methionine and its analogs from acrolein.

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08-10-1999 дата публикации

SULFUR PRODUCTS OF ADDITION OF A POLYTHIOL TO A NORBORNENE DERIVATIVE, MANUFACTURING PROCESS AND APPLICATION TO OBTAINING RADICAL CROSSLINING PRODUCTS

Номер: FR2777009A1
Принадлежит: Cray Valley SA

The invention concerns a sulphur product obtained by additive reaction of at least a polythiol (I), (A) on at least a compound of formula (II): wherein R<1> represents an aliphatic radical, linear or branched, comprising a double ethylenically unsaturated bond, the latter capable of being the one whereby R<1> is bound to the norbornene cycle, said cycle capable of further comprising other substituents selected among C1-C3 alkyl, in proportions corresponding or substantially corresponding to a thiol group of the polythiol(s) (I) per mole of the compound(s) (II), the thiol groups of the compound(s) (I) having been added for the most part on the cyclic double bond of the compound(s) (II) and, on average, one ethylene unsaturation of a compound (II) of the two it carries having been left free; or (B) on at least a cross-linkable product (P), such as one obtained as per point (A) above, the double bonds of said product (P) having been completely or substantially completely consumed, the resulting product (P') being a cross-linked product.

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22-08-2014 дата публикации

PROCESS FOR THE PRODUCTION OF METHIONINE

Номер: FR2961808B1
Принадлежит: Sumitomo Chemical Co Ltd

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20-02-2004 дата публикации

SEMI-CONTINUOUS PHOTOCHEMICAL PROCESS AND DEVICE FOR IMPLEMENTING SAME

Номер: FR2823206B1
Принадлежит: Atofina SA

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05-03-1999 дата публикации

SYNTHESIS OF CARBOXYALKYLTHIOSUCCINIC ACIDS

Номер: FR2767824A1

Pour préparer les acides carboxyalkylthiosucciniques de formule : (CF DESSIN DANS BOPI) dans laquelle n = 1 à 3 et R = H ou CH3 , on fait réagir en milieu aqueux, sans catalyseur, un mercapto-ester de formule : HS(CH2 ) n -COOR' dans laquelle R' est un radical alkyle en C1 à C4 , avec l'acide maléique, l'acide citraconique ou leur anhydride.L'invention vise plus particulièrement la préparation de l'acide carboxyéthylthiosuccinique (CETSA). To prepare the carboxyalkylthiosuccinic acids of formula: (CF DRAWING IN BOPI) in which n = 1 to 3 and R = H or CH3, a mercapto-ester of formula: HS (CH2) n is reacted in aqueous medium, without catalyst -COOR 'in which R' is a C1 to C4 alkyl radical, with maleic acid, citraconic acid or their anhydride. The invention relates more particularly to the preparation of carboxyethylthiosuccinic acid (CETSA).

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13-03-2003 дата публикации

METHOD FOR PRODUCING 3- (METHYLTHIO) PROPANOL

Номер: DE69626119D1
Автор: C Hsu
Принадлежит: Novus International Inc

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01-10-2014 дата публикации

Improved process for the addition of thiolates to alfa, beta-unsaturated carbonyl or sulfonyl compounds

Номер: CN102186814B
Принадлежит: DOW AGROSCIENCES LLC

本发明涉及在烷烃羧酸和水存在下通过α,β-不饱和羰基和磺酰基化合物与硫醇钠或硫醇钾反应制备烷基硫基取代的醛、烷基硫基取代的酮、烷基硫基取代的酯和烷基硫基取代的砜。

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07-08-2014 дата публикации

Flow reactor vessels and reactor systems

Номер: WO2014121195A1
Принадлежит: CHEVRON PHILLIPS CHEMICAL COMPANY LP

The present invention discloses high pressure flow reactor vessels and associated systems. Also disclosed are processes for producing thiol compounds and sulfide compounds utilizing these flow reactor vessels.

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27-10-2005 дата публикации

METHOD FOR PRODUCING 3-METHLTIOPROPANAL

Номер: RU2005105040A

ÐÎÑÑÈÉÑÊÀß ÔÅÄÅÐÀÖÈß (19) RU (51) ÌÏÊ 7 (11) 2005 105 040 (13) A C 07 C 319/18 ÔÅÄÅÐÀËÜÍÀß ÑËÓÆÁÀ ÏÎ ÈÍÒÅËËÅÊÒÓÀËÜÍÎÉ ÑÎÁÑÒÂÅÍÍÎÑÒÈ, ÏÀÒÅÍÒÀÌ È ÒÎÂÀÐÍÛÌ ÇÍÀÊÀÌ (12) ÇÀßÂÊÀ ÍÀ ÈÇÎÁÐÅÒÅÍÈÅ (21), (22) Çà âêà: 2005105040/04, 14.10.2003 (71) Çà âèòåëü(è): ÀÄÈÑÑÅÎ ÀÉÝËÅÍÄ ËÈÌÈÒÅÄ (IE) (30) Ïðèîðèòåò: 24.10.2002 EP 02356211.9 (72) Àâòîð(û): ÐÝÉ Ïàòðèê (FR) (85) Äàòà ïåðåâîäà çà âêè PCT íà íàöèîíàëüíóþ ôàçó: 30.03.2005 (74) Ïàòåíòíûé ïîâåðåííûé: Ïîëèêàðïîâ Àëåêñàíäð Âèêòîðîâè÷ (86) Çà âêà PCT: IB 03/04557 (14.10.2003) Àäðåñ äë ïåðåïèñêè: 191036, Ñàíêò-Ïåòåðáóðã, à/ 24, "ÍÅÂÈÍÏÀÒ", ïàò.ïîâ. À.Â.Ïîëèêàðïîâó R U Ôîðìóëà èçîáðåòåíè 1. Ñïîñîá ïîëó÷åíè 3-ìåòèëòèîïðîïàíàë , âêëþ÷àþùèé âçàèìîäåéñòâèå ðåàêöèîííîé ñðåäû, ñîäåðæàùåé ìåòèëìåðêàïòàí è àêðîëåèí, â ïðèñóòñòâèè êàòàëèçàòîðà, âêëþ÷àþùåãî îðãàíè÷åñêîå îñíîâàíèå, îòëè÷àþùèéñ òåì, ÷òî îðãàíè÷åñêîå îñíîâàíèå ïðåäñòàâë åò ñîáîé ñîåäèíåíèå N-àëêèëìîðôîëèíà. 2. Ñïîñîá ïî ï.1, â êîòîðîì êàòàëèçàòîð ïðåäñòàâë åò ñîáîé C1-C6-àëêèëìîðôîëèí. 3. Ñïîñîá ïî ï.2, â êîòîðîì êàòàëèçàòîð ïðåäñòàâë åò ñîáîé ìåòèëìîðôîëèí èëè ýòèëìîðôîëèí. 4. Ñïîñîá ïî ëþáîìó èç ïðåäøåñòâóþùèõ ïóíêòîâ, â êîòîðîì ìîë ðíîå îòíîøåíèå îðãàíè÷åñêîãî îñíîâàíè ê ìåòèëìåðêàïòàíó ñîñòàâë åò îò 0,0001 äî 0,05. 5. Ñïîñîá ïî ï.4, â êîòîðîì ìîë ðíîå îòíîøåíèå îðãàíè÷åñêîãî îñíîâàíè ê ìåòèëìåðêàïòàíó ñîñòàâë åò îò 0,001 äî 0,01. 6. Ñïîñîá ïî ï.1, â êîòîðîì ìîë ðíîå îòíîøåíèå ìåòèëìåðêàïòàíà ê àêðîëåèíó ñîñòàâë åò îò 0,9 äî 2. 7. Ñïîñîá ïî ï.6, â êîòîðîì ìîë ðíîå îòíîøåíèå ìåòèëìåðêàïòàíà ê àêðîëåèíó ñîñòàâë åò îò 1 äî 1,2. 8. Ñïîñîá ïî ï.1, â êîòîðîì êàòàëèçàòîð äîïîëíèòåëüíî âêëþ÷àåò îðãàíè÷åñêóþ êèñëîòó. 9. Ñïîñîá ïî ï.8, â êîòîðîì îðãàíè÷åñêóþ êèñëîòó âûáèðàþò èç ìóðàâüèíîé êèñëîòû, óêñóñíîé êèñëîòû, ïðîïàíîâîé êèñëîòû è áóòàíîâîé êèñëîòû. 10. Ñïîñîá ïî ï.9, â êîòîðîì îðãàíè÷åñêà êèñëîòà ïðåäñòàâë åò ñîáîé óêñóñíóþ êèñëîòó. 11. Ñïîñîá ïî ëþáîìó èç ïï.8-10, â êîòîðîì ìîë ðíîå îòíîøåíèå êàòàëèçàòîðà ê îðãàíè÷åñêîé êèñëîòå ñîñòàâë åò îò 0,1 äî 2. Ñòðàíèöà: 1 RU A 2 0 0 5 1 ...

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25-02-2010 дата публикации

Improved process for the addition of thiolates to alpha, beta-unsaturated carbonyl or sulfonyl compounds

Номер: CA2733544A1
Принадлежит: DOW AGROSCIENCES LLC

Alkylthio substituted aldehydes, ketones, esters and sulfones are prepared by reacting a,ß-unsaturated carbonyl and sulfonyl compounds with a sodium or potassium thiolate in the presence of a alkane carboxylic acid and water.

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24-06-2011 дата публикации

PROCESS FOR THE PREPARATION OF ACROLEIN BY CATALYTIC DEHYDRATION OF GLYCEROL OR GLYCERIN

Номер: FR2954312A1

L'invention concerne un procédé de préparation d'acroléine à partir de glycérol ou de glycérine, selon lequel on réalise la déshydratation du glycérol ou de la glycérine en présence d'un catalyseur qui consiste en au moins une silice modifiée par du dioxyde de zirconium, dioxyde de titane ou trioxyde de tungstène ou toute combinaison de ces oxydes, et un hétéropolyacide. Ce procédé peut être utilisé pour la fabrication de l'aldéhyde-3-(méthylthio)propionique (MMP), du 2-hydroxy-4méthylthiobutyronitrile (HMTBN, de la méthionine ou de ses analogues, à partir d'acroléine. The invention relates to a process for the preparation of acrolein from glycerol or glycerine, wherein the dehydration of glycerol or glycerin is carried out in the presence of a catalyst which consists of at least one silica modified with zirconium dioxide. , titanium dioxide or tungsten trioxide or any combination of these oxides, and a heteropoly acid. This process can be used for the manufacture of aldehyde-3- (methylthio) propionic acid (MMP), 2-hydroxy-4-methylthiobutyronitrile (HMTBN, methionine or analogs thereof from acrolein.

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09-08-2019 дата публикации

Thioetherification of mercaptanes in c4 hydrocarbon mixtures

Номер: KR102009548B1
Принадлежит: 에보닉 데구사 게엠베하

본 발명은 1-부텐의 존재 하에 및 불균일 촉매를 사용하여, 수소의 부가와 함께 반응기에서 수행되는, 다중 불포화 탄화수소에 의한 메르캅탄의 티오에테르화 방법에 관한 것이다. 본 발명의 목적은 C 4 원료 물질 스트림으로부터 가치 있는 창출이 증가될 정도로 상기 방법을 발전시키는 것이다. 상기 목적은 다중 불포화 탄화수소에 대한 수소의 몰비가 1 이하인 방식으로 반응에 수소가 첨가되는 것에 있어서 달성된다. The present invention relates to a process for thioetherification of mercaptans with polyunsaturated hydrocarbons, carried out in a reactor with the addition of hydrogen, in the presence of 1-butene and using heterogeneous catalysts. It is an object of the present invention to develop the process to such an extent that valuable creation from C 4 raw material streams is increased. This object is achieved in that hydrogen is added to the reaction in such a way that the molar ratio of hydrogen to polyunsaturated hydrocarbon is 1 or less.

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01-08-2017 дата публикации

The method that the ester of lactate and the butenoate of 2 hydroxyl 3 or α hydroxy methionine analogs is prepared by sugar

Номер: CN107001253A
Принадлежит: Haldor Topsoe AS

本发明涉及一种用于在固体路易斯酸催化剂和包含有机溶剂和水的溶剂的存在下由糖制备一种或多种乳酸酯和2‑羟基‑3‑丁烯酸酯或α‑羟基蛋氨酸类似物的酯的连续流方法。本发明提供了用于稳定在连续的反应过程中所使用的路易斯酸催化剂的方法,在该反应过程中,水以大于或等于有机溶剂的10体积%的量存在。

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15-10-2014 дата публикации

Method for modification of organic molecules

Номер: EP2707356A4
Автор: Chuan-Fa Liu, Fupeng Li
Принадлежит: NANYANG TECHNOLOGICAL UNIVERSITY

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31-05-2019 дата публикации

Patent RU2017122603A3

Номер: RU2017122603A3
Автор:
Принадлежит:

ВУ“? 2017122603"” АЗ Дата публикации: 31.05.2019 Форма № 18 ИЗ,ПМ-2011 Федеральная служба по интеллектуальной собственности Федеральное государственное бюджетное учреждение 5 «Федеральный институт промышленной собственности» (ФИПС) ОТЧЕТ О ПОИСКЕ 1. . ИДЕНТИФИКАЦИЯ ЗАЯВКИ Регистрационный номер Дата подачи 2017122603/04(039133) 12.11.2015 РСТ/ЕР2015/076399 12.11.2015 Приоритет установлен по дате: [ ] подачи заявки [ ] поступления дополнительных материалов от к ранее поданной заявке № [ ] приоритета по первоначальной заявке № из которой данная заявка выделена [ ] подачи первоначальной заявки № из которой данная заявка выделена [ ] подачи ранее поданной заявки № [Х] подачи первой(ых) заявки(ок) в государстве-участнике Парижской конвенции (31) Номер первой(ых) заявки(ок) (32) Дата подачи первой(ых) заявки(ок) (33) Код страны 1. 14195485.9 28.11.2014 ЕР 2. РА 2015 00288 13.05.2015 ОК Название изобретения (полезной модели): [Х] - как заявлено; [ ] - уточненное (см. Примечания) СПОСОБ ПОЛУЧЕНИЯ СЛОЖНЫХ ЭФИРОВ МОЛОЧНОЙ КИСЛОТЫ ИЗ САХАРОВ Заявитель: ХАЛЬДОР ТОПСЕЭ А/С, ОК 2. ЕДИНСТВО ИЗОБРЕТЕНИЯ [Х] соблюдено [ ] не соблюдено. Пояснения: см. Примечания 3. ФОРМУЛА ИЗОБРЕТЕНИЯ: [Х] приняты во внимание все пункты (см. Примечания) [ ] приняты во внимание следующие пункты: [ ] принята во внимание измененная формула изобретения (см. Примечания) 4. КЛАССИФИКАЦИЯ ОБЪЕКТА ИЗОБРЕТЕНИЯ (ПОЛЕЗНОЙ МОДЕЛИ) (Указываются индексы МПК и индикатор текущей версии) С07С 67/44 (2006.01) С07С 67/475 (2006.01) С07С 69/732 (2006.01) С07С 69/68 (2006.01) С07С 319/18 (2006.01) 5. ОБЛАСТЬ ПОИСКА 5.1 Проверенный минимум документации РСТ (указывается индексами МПК) С07С 67/44, С07С 67/475, СО7С 69/732, С07С 69/68, СО7С 319/18 5.2 Другая проверенная документация в той мере, в какой она включена в поисковые подборки: 5.3 Электронные базы данных, использованные при поиске (название базы, и если, возможно, поисковые термины): Езрасепе, Соозе, Рабеагсв, ОЗРТО, Уапаех 6. ДОКУМЕНТЫ, ОТНОСЯЩИЕСЯ К ПРЕДМЕТУ ...

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24-07-2020 дата публикации

AGENT FOR INITIATING A RADICAL ADDITION REACTION AND IMPLEMENTING IT

Номер: FR3091870A1
Принадлежит: Adisseo France SAS

L’invention concerne un agent pour l’initiation d’une réaction d’addition radicalaire comprenant ou consistant en un persulfate et un ou plusieurs métaux de transition, sous forme élémentaire ou sous une forme oxydée, ainsi qu’un procédé de préparation d’un composé de formule (I) dans laquelle X est choisi parmi S, Se et O; par une réaction d’addition radicalaire en présence d’un tel agent. The invention relates to an agent for initiating a radical addition reaction comprising or consisting of a persulfate and one or more transition metals, in elemental form or in an oxidized form, as well as a process for the preparation of. a compound of formula (I) in which X is chosen from S, Se and O; by a radical addition reaction in the presence of such an agent.

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29-03-2021 дата публикации

Process for preparing alfa-hydroxy methionine analogues from sugars

Номер: HUE051552T2
Принадлежит: Haldor Topsoe AS

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28-04-2021 дата публикации

Aromatic polythiol compound for optical material

Номер: EP3486272B1
Принадлежит: SKC Co Ltd

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11-05-1998 дата публикации

3-(methylthio) propanal obtaining process

Номер: PL324188A1
Автор: Yung C Hsu
Принадлежит: Novus International

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01-10-2002 дата публикации

Continuous hydrolysis process for the preparation of 2-hydroxy-4-methylthiobutanoic acid

Номер: US6458997B2
Принадлежит: Novus International Inc

A continuous process for the preparation of 2-hydroxy-4-methylthiobutanoic acid which includes introducing sulfuric acid into a first reactor including a continuous stirred tank reactor and introducing 2-hydroxy-4-methylthiobutanenitrile into the first reactor. 2-hydroxy-4-methylthiobutanenitrile is continually hydrolyzed within the first reactor to produce an intermediate aqueous hydrolysis solution containing 2-hydroxy-4-methylthiobutanamide. The intermediate aqueous hydrolysis solution is continuously introduced into a plug flow reactor. 2-hydroxy-4-methylthiobutanamide is continually hydrolyzed within the plug flow reactor to produce an aqueous hydrolyzate product solution containing 2-hydroxy-4-methylthiobutanoic acid. 2-hydroxy-4-methylthiobutanoic acid is recovered from the aqueous hydrolyzate product solution.

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23-05-2005 дата публикации

Process for the preparation of 3-methylthiopropanal.

Номер: NO20052471D0
Автор: Patrick Rey
Принадлежит: Adiesso Ireland Ltd Ifsc

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02-12-2015 дата публикации

Processes for the preparation of ß-aminosulfone compounds

Номер: EP2949645A1
Принадлежит: Lek Pharmaceuticals dd

The present invention relates to processes for preparing β-aminosulfone compounds. The provided compounds are useful intermediates in the preparation of sulfone group containing isoindoline-based compounds, in particular apremilast.

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29-12-2011 дата публикации

Method for producing methionine

Номер: US20110319659A1
Принадлежит: Sumitomo Chemical Co Ltd

A method for producing methionine includes a hydrolyzing step of hydrolyzing 5-(β-methylmercaptoethyl)hydantoin, and a crystallizing step of crystallizing with carbon dioxide introduced into a reaction solution after hydrolysis, to obtain methionine. In the crystallizing step, as carbon dioxide introduced into the hydrolysis reaction solution, carbon dioxide that is separated in a carbon dioxide separation section from a reformed gas formed by steam reforming reaction in a steam reformation section and carbon dioxide that is separated in an exhaust gas separation section from a combustion exhaust gas generated by pure oxygen combustion in a hydrocarbon heating furnace and a reformation reaction heating furnace are used.

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14-03-2018 дата публикации

Method for the production of 3-(methylthio)propanal

Номер: EP2987785B1
Принадлежит: EVONIK DEGUSSA GmbH

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28-07-2005 дата публикации

Process for the separation of methylmercaptan from reaction mixtures

Номер: DE10359636A1
Принадлежит: Degussa GmbH

Die Erfindung betrifft ein Verfahren zur Abtrennung von Methylmercaptan aus Reaktionsgasgemischen, die durch katalytische Umsetzung von H¶2¶S mit Methanol erhalten werden, indem man das Methylmercaptan in Gegenwart der Nebenprodukte mit Acrolein zu MMP umsetzt und dieses abtrennt. The invention relates to a process for the separation of methylmercaptan from reaction gas mixtures which are obtained by catalytic reaction of H¶2¶S with methanol by reacting the methylmercaptan in the presence of by-products with acrolein to MMP and this is separated.

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15-05-2013 дата публикации

Preparation method of polythiol compound and polymerizable composition for optical material comprising it

Номер: KR20130050263A
Автор: 김종효, 노수균, 장동규
Принадлежит: 주식회사 케이오씨솔루션

본 발명은 폴리티올 화합물의 제조 방법 및 이를 포함하는 광학재료용 중합성 조성물에 관한 것으로, 특히 삼중결합 화합물과 티올 작용기를 가진 메르캅토화합물을 반응시켜 폴리올 화합물을 경유하여 폴리티올 화합물을 제조하는 방법 및 이 폴리티올 화합물를 포함하는 광학재료용 중합성 조성물에 관한 것이다. 본 발명에서는, 삼중결합을 갖는 화합물과 적어도 한 개의 티올 작용기를 갖는 메르캅토화합물을 반응시켜 폴리올 화합물을 얻는 단계와; 상기 폴리올 화합물을 티오우레아와 반응시켜 이소티우로늄염을 얻는 단계와; 상기 이소티우로늄염을 가수분해하여 폴리티올 화합물을 얻는 단계를 포함하는 광학재료용 폴리티올 화합물의 제조방법이 제공된다. 본 발명에 따라 제조된 폴리티올 화합물은 범용의 폴리이소(티오)시아네이트와 중합시켜 렌즈를 제조하더라도 중합불균형이나 백화, 백탁이 없는 무색투명한 고품질의 렌즈를 제조할 수 있다.

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30-08-1950 дата публикации

Reaction of vinyl ethers with thiols

Номер: GB642253A
Автор:
Принадлежит: General Aniline and Film Corp

Compounds of the general formula <FORM:0642253/IV (b)/1> (wherein X represents oxygen or sulphur, and R1 and R2 each represent alkyl, aryl, aralkyl or alkaryl radicals, or oxygen- or sulphur-interrupted hydrocarbon radicals, or jointly represent a bivalent hydrocarbon radical) are manufactured by reacting a mercaptan R2SH with a vinyl ether CH2=CHOR1, preferably under substantially anhydrous conditions in the presence of an acidic catalyst (e.g. mineral acids, aromatic sulphonic acids or substances having an acid reaction such as a -chloroethyl ether), if desired in the presence of an inert diluent. In examples, methyl vinyl ether is reacted with: (1) ethyl mercaptan in diethyl ether in the presence of a -chloroethyl methyl ether to produce methyl ethylthiol acetal and diethyl mercaptal; (2) b -mercaptoethanol in the presence of p-toluenesulphonic acid to yield 2-methyl-1 : 3-thioxolane. Additional starting materials specified are, on the one hand, ethyl, isopropyl, isobutyl, lauryl, stearyl, phenyl, cresyl, benzyl, b -methoxyethyl and b -methylthioethyl vinyl ethers, and, on the other hand, methyl, propyl, isopropyl, butyl, isobutyl, amyl, octyl, lauryl, stearyl, phenyl, naphthyl, cresyl and benzyl mercaptans, ethane-, 1 : 2- and 1 : 3-propane- and 1 : 3-butane-dithiols, g -mercaptopropanol and b - and g -mercaptobutanol. Specification 20905/38 (as open to inspection under Sect. 91) is referred to.

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10-12-2019 дата публикации

Methods for producing thiol compounds and sulfide compounds using diphenylamine or a phenol compound

Номер: US10501408B2
Автор: Kenneth M. Lassen
Принадлежит: Chevron Phillips Chemical Co LP

The present invention discloses processes for producing a thiol compound or a sulfide compound from an olefin compound. Diphenylamine or a phenol compound can be used to increase the rate of conversion of the olefin compound to the thiol compound or the sulfide compound.

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29-01-2014 дата публикации

Method for producing 3-methylthiopropanal

Номер: JP5402864B2
Автор: 拓志 畔見
Принадлежит: Sumitomo Chemical Co Ltd

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