The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 24, 1993
Filed:
Sep. 17, 1991
Nobuo Murakami, Sodegaura, JP;
Idemitsu Kosan Company Limited, Tokyo, JP;
Abstract
An efficient microbiological or biochemical method is proposed for the preparation of an optically active 2-substituted carboxylic acid, e.g., 2-chloropropionic acid, 2-methyl butyric acid and the like, from the corresponding 2-substituted nitrile compound, e.g., 2-chloropropionitrile, 2-methyl butyronitrile and the like, in the form of a racemic body as the starting material The method comprises bringing the starting nitrile compound into contact with a microorganism, such as Pseudomonas sp. MY-1 (FERM BP-2541), Fusarium sp. MY-2 (FERM BP-2542) and the like, capable of converting the nitrile compound into the carboxylic acid in a buffered aqueous medium in which the microbial cells of the microorganism are suspended.