OPTICALLY ACTIVE CYCLOPENTENONE AND PRODUCTION THEREOF

    公开(公告)号:JPS6078585A

    公开(公告)日:1985-05-04

    申请号:JP18560583

    申请日:1983-10-03

    摘要: NEW MATERIAL:A compound of formula I (R' is H or acyl; R is alkyl, alkenyl or alkynyl). EXAMPLE:l-3-Hydroxy-2-n-pentyl-4-cyclopentenone. USE:An intermediate for agricultural chemicals, perfumes and medicines. PREPARATION:Esterase produced by a microorganism, e.g. lipase of the genus Aspergillus, or esterase derived from animals or plants is added to and mixed with a dl-4-cyclopentenone ester of formula II (R'' is acyl), e.g. dl-3-acetoxy- 2-n-pentyl-4-cyclopentenone, and the resultant mixture is then stirred vigorously in a buffer solution of 5-11pH usually in 0.05-0.5M concentration at 10-16 deg.C for 10-70hr and subjected to asymmetric hydrolysis.