Pyran derivatives, process of preparation and use thereof in perfumery and flavouring
Номер патента: EP2125767A2
Опубликовано: 02-12-2009
Автор(ы): Caroline Plessis, Jean Mane
Принадлежит: V Mane Fils SAS
Опубликовано: 02-12-2009
Автор(ы): Caroline Plessis, Jean Mane
Принадлежит: V Mane Fils SAS
Реферат: Pyran derivatives of general formula (I) wherein Y is a 5-, 6- or 7-membered ring, preferably a 5-membered ring, methyl or ethyl mono- or polysubstituted, and optionally unsaturated, and R1, R2, R3, R4 are, each independently, a hydrogen atom or a linear or branched C1-5 alkyl or C2-5 alkenyl group, and X is present or absent; when X is present, R5, R6, R7, R8, R9 are all present, and X is a hydrogen atom or an OZ group, wherein Z is a hydrogen atom or a R10 group or a C(O)R10 group; when X is absent, a double bond involving the carbon atom at the 4 position is present and R7, R8 and R9 are present, and one of R5 or R6 is present and the other one is absent, or R5, R6, and R7 are present, and one of R8 or R9 is present and the other one is absent, or R7 is a =C (R11) (R12) group and R5, R6, R8, R9 are present; and when they are present, each of R5-R12 group is, independently, a hydrogen atom or a linear or branched C1-5 alkyl or C2-5 alkenyl group; and use of at least one pyran derivative of formula (I) as flavouring or fragrant agent.
Methods of preparing steviol glycosides and uses of the same
Номер патента: EP3687296A1. Автор: Avetik Markosyan,Siew Yin CHOW,Khairul NIZAM BIN NAWI. Владелец: PureCircle USA Inc. Дата публикации: 2020-08-05.