Chemistry: molecular biology and microbiology – Process of utilizing an enzyme or micro-organism to destroy... – Resolution of optical isomers or purification of organic...
Patent
1987-05-29
1990-09-18
Rosen, Sam
Chemistry: molecular biology and microbiology
Process of utilizing an enzyme or micro-organism to destroy...
Resolution of optical isomers or purification of organic...
435135, 435136, 435149, C12P 762, C12P 738
Patent
active
049578677
ABSTRACT:
A process for preparing an optically active cyclopentenone of the formula: ##STR1## wherein R is a hydrogen atom or a lower alkyl group and n is an integer of 4 to 8, which comprises contacting a dl-cyclopentenone ester of the formula: ##STR2## wherein R and n are each as defined above and R' is a lower alkyl group optionally substituted with halogen on an enzyme having a capability of hydrolyzing selectively either one of the d- or l-form isomer in the dl-cyclopentenone ester (II) in an aqueous medium for asymmetric hydrolysis.
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Higashii Takayuki
Kai Seiichi
Kondo Michitada
Minai Masayoshi
Ueda Yuji
Rosen Sam
Sumitomo Chemical Company Limited
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