PROCESS FOR THE PREPARATION OF CIS-ALPHA,BETA SUBSTITUTED CYCLOPENTANONES

    公开(公告)号:US20210323904A1

    公开(公告)日:2021-10-21

    申请号:US17273357

    申请日:2019-12-16

    申请人: FIRMENICH SA

    IPC分类号: C07C67/327 C07C69/716

    摘要: Described herein is a process for the preparation of a mixture of compounds of formula having a weight ratio of the cis-diastereomers to trans-diastereoisomers higher than 1:1, where R1 represents a C1-8 alkyl group, a C2-8 alkenyl group or a C2-8 alkynyl group, each optionally substituted with one or two of a C1-4 alkyl alkoxy ether group and/or a C1-4 alkyl carboxylester group and R2 represents a C1-6 alkyl, a C2-6 alkenyl or a C2-6 alkynyl group, each optionally substituted with a C1-4 alkyl alkoxy ether group, a carboxylic acid group or a C1-4 alkyl carboxylester group and compounds suitable in the process.

    Process for the preparation of cis-alpha,beta substituted cyclopentanones

    公开(公告)号:US11339113B2

    公开(公告)日:2022-05-24

    申请号:US17273357

    申请日:2019-12-16

    申请人: FIRMENICH SA

    IPC分类号: C07C67/327 C07C69/716

    摘要: Described herein is a process for the preparation of a mixture of compounds of formula having a weight ratio of the cis-diastereomers to trans-diastereoisomers higher than 1:1, where R1 represents a C1-8 alkyl group, a C2-8 alkenyl group or a C2-8 alkynyl group, each optionally substituted with one or two of a C1-4 alkyl alkoxy ether group and/or a C1-4 alkyl carboxylester group and R2 represents a C1-6 alkyl, a C2-6 alkenyl or a C2-6 alkynyl group, each optionally substituted with a C1-4 alkyl alkoxy ether group, a carboxylic acid group or a C1-4 alkyl carboxylester group and compounds suitable in the process.