[EN] PROCESS FOR THE PREPARATION OF ENANTIOMERICALLY ENRICHED ESTERS AND ALCOHOLS [FR] PROCEDE D'ELABORATION D'ESTERS ET D'ALCOOLS A ENRICHISSEMENT ENANTIOMERE
[EN] PROCESS FOR THE PREPARATION OF ENANTIOMERICALLY ENRICHED ESTERS AND ALCOHOLS<br/>[FR] PROCEDE D'ELABORATION D'ESTERS ET D'ALCOOLS A ENRICHISSEMENT ENANTIOMERE
申请人:DSM IP ASSETS BV
公开号:WO2005014509A1
公开(公告)日:2005-02-17
The invention relates to a process for the preparation of an enantiomerically enriched ester, in which a mixture of the enantiomers of the corresponding chiral secondary alcohol in the presence of a racemisation catalyst for the substrate is subjected to an enantioselective acylation with the aid of an acyl donor and a stereoselective acylation catalyst upon which the enantiomerically enriched ester and an acyl donor residue are formed, in the presence of a carbonyl compound and wherein the racemisation catalyst comprises at least one ligand and a metal M chosen from group IIIa, IIIb, IVb of the periodic system, preferably Al.