PROCESS FOR THE PREPARATION OF AN ENANTIOMERICALLY AND/OR DIASTEREOMERICALLY ENRICHED ESTER, THIOESTER, ALCOHOL OR THIOL
申请人:DSM IP Assets B.V.
公开号:EP2203562B1
公开(公告)日:2012-04-18
[EN] PROCESS FOR THE PREPARATION OF AN ENANTIOMERICALLY AND/OR DIASTEREOMERICALLY ENRICHED ESTER, THIOESTER, ALCOHOL OR THIOL<br/>[FR] PROCÉDÉ DE PRÉPARATION D'UN ESTER, THIOESTER, ALCOOL OU THIOL ÉNANTIOMÉRIQUEMENT ET/OU DIASTÉRÉOMÉRIQUEMENT ENRICHI
申请人:DSM IP ASSETS BV
公开号:WO2009050216A1
公开(公告)日:2009-04-23
The invention relates to a process for preparing an enantiomerically and/or diastereomerically enriched ester or thioester having at least two adjacent chiral centres, wherein a mixture of stereoisomers of a secondary alcohol or thiol having a structure comprising a first chiral center forming a secondary alcohol or secondary thiol moiety in the beta position relative to a second chiral center having one hydrogen substituent, is reacted with an acyl donor in the presence of an epimerisation catalyst and a stereoselective acylation catalyst.