Diketene a new esterification reagent in the enzyme-aided synthesis of chiral alcohols and chiral acetoacetic acid esters
作者:Günter E. Jeromin、Volker Welsch
DOI:10.1016/00404-0399(50)1396-y
日期:1995.9
It was found that in the presence of Pseudomonas lipase diketene can be used as a new reagent for irreversible and enantioselective acylation of secondary alcohols. The reagent is useful to prepare optically active alcohols and optically active acetoacetic acid esters.
The title compounds are readily available by ring transformation of nitropyrimidinone with active methylene compounds in the presence of ammonium acetate.