Process for producing epoxyalcohols of high optical purity

Details Process for producing epoxyalcohols of high optical purity Process for producing epoxyalcohols of high optical purity

C - Chemistry, Metallurgy

12

P

195/129

C12P 17/02 (2006.01) C12P 41/00 (2006.01)

Patent

CA 2039857

ABSTRACT OF THE DISCLOSURE A process for enriching or improving the optical purity of an asymmetric epoxidation reaction mixture is provided wherein the chiral epoxy alcohol enantiomer present in minor amounts is effectively separated from the predominant chiral epoxy alcohol enantiomer. The minor enantiomer is converted to an epoxy ester by stereoselective transesterification using a carboxylic acid derivative such as an enol ester and a lipase enzyme. The desired major chiral epoxy alcohol enantiomer is then recovered or reacted in situ to form a chiral epoxy alcohol derivative.

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