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Применить Всего найдено 3. Отображено 3.
07-01-2015 дата публикации

Lewis acid-amine salt/ammonium salt mixed catalyst and applications thereof in hydrogenation and hydrosilation of carbon oxides

Номер: CN104258904A
Автор: NIE WANLI, TIAN CHONG, MAXIM V.BORZOV, HU XI, HU WENJIE, LIU QIN, JIANG YA, GONG HU, LI KUI, CHEN GUOCONG
Принадлежит:

A Lewis acid-amine salt/ammonium salt mixed catalyst and applications thereof in hydrogenation and hydrosilation of carbon oxides are disclosed. The catalyst is a mixture of a Lewis acid, and an amine salt or an ammonium salt. The Lewis acid is any one selected from tris(pentafluorophenyl)boron, tris(tetrafluorophenyl)boron, tris(trifluorophenyl)boron, tris(difluorophenyl)boron, tris(fluorophenyl)boron and triphenylboron. The catalyst is suitable for hydrogenation and hydrosilation of any carbon oxides. Aldehydes and acetones can be completely reduced into alkanes under actions of the catslyst. Reactions can be rapidly performed at room temperature under normal pressure, the using amount of hydrogenated silane is small, the conversion rate is high, and the product yield is high. The catalyst is free of heavy metals, so that problems such as heavy metal pollution can be avoided. After the reactions are finished, products can be separated by distillation, extraction, column chromatography ...

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Номер записи: 1
07-01-2015 дата публикации

Preparing method of amine borohydride salts

Номер: CN104262374A
Автор: NIE WANLI, TIAN CHONG, MAXIM V.BORZOV, LIU QIN, HU XI, HU WENJIE, JIANG YA, LI KUI, GONG HU, CHEN GUOCONG
Принадлежит:

A preparing method of amine borohydride salts is disclosed. The method adopts amine salts, hydrogenated silane, and a Lewis acid to form a reaction system. When the amine borohydride salts are prepared, the selection range of the amine salts is large, and an amine borohydride salt which cannot be prepared by a frustrated Lewis acid-base pair system can be prepared with a high yield. The prepared amine borohydride salts can be used for catalytic hydrogenation reactions in organic synthesis. Substrates for catalytic hydrogenation can be unsaturated-bond-containing olefins, alkynes, carbonyl compounds, carboxylic acids and derivatives thereof, amines, enamines, nitrile compounds, enols, carbon dioxide, nitric oxide, and the like.

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Номер записи: 2
24-12-2014 дата публикации

Method for preparing chloro silane

Номер: CN104230975A
Автор: NIE WANLI, TIAN CHONG, MAXIM V.BORZOV, JIANG YA, LIU QIN, HU XI, HU WENJIE, LI KUI, GONG HU, CHEN GUOCONG
Принадлежит:

The invention discloses a method for preparing chloro silane. According to the method, arylamine hydrochloride is adopted as a chlorination agent, and chlorination of hydrogenated silane can be achieved at normal temperature and normal pressure under the action of lewis acid. The method is gentle in reaction condition, the chlorination agent is relatively small in corrosion on equipment, the catalyst is free of heavy metal element, so that no heavy metal pollution is generated, and the chlorination agent can be regenerated and recycled by introducing an HCl gas into the reaction system after the reaction is completed.

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Номер записи: 3