[EN] PROCESS FOR PRODUCING (R)-3-HYDROXYBUTYL (R)-3-HYDROXYBUTYRATE<br/>[FR] PROCÉDÉ DE PRODUCTION DE (R)-3-HYDROXYBUTYRATE DE (R)-3-HYDROXYBUTYLE
申请人:ISIS INNOVATION
公开号:WO2014140308A1
公开(公告)日:2014-09-18
A process for the production of (R)-3-hydroxybutyl (R)-3-hydroxybutyrate comprising: i) contacting poly-(R)-3-hydroxybutyrate with an alcohol to transesterify the poly-(R)-3-hydroxybutyrate under transesterification conditions to produce an ester of (R)-3-hydroxybutyrate and the alcohol; ii) separating the product of step i) into a first and second portion and reducing the first portion of the (R) 3-hydroxybutyrate ester to form (R)-1,3-butanediol; and iii) contacting under transesterification conditions the (R)-1,3-butanediol from step ii) with the second portion of the transesterified ester to produce (R)-3-hydroxybutyl-(R)-hydroxybutanoate.
PROCESS FOR PRODUCING (R)-3-HYDROXYBUTYL (R)-3-HYDROXYBUTYRATE
申请人:Isis Innovation Limited
公开号:EP2984066A1
公开(公告)日:2016-02-17
Asymmetric Catalytic Alkynylation of Acetaldehyde: Application to the Synthesis of (+)-Tetrahydropyrenophorol
作者:Barry M. Trost、Adrien Quintard
DOI:10.1002/anie.201203035
日期:2012.7.2
In control: By controlling the kinetics of alkynylation over aldolization, the challenging asymmetriccatalyticalkynylation of acetaldehyde has been realized. The resulting products are attractive synthons which are produced with good to excellent enantiocontrol, and show broad tolerance and applicability, as demonstrated by the synthesis (+)‐tetrahydropyrenophorol.