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:
Nov. 15, 2011
Filed:
Aug. 08, 2007
Susumu Amano, Takasago, JP;
Akio Fujii, Takasago, JP;
Shohei Yamamoto, Takasago, JP;
Masaru Mitsuda, Takasago, JP;
Susumu Amano, Takasago, JP;
Akio Fujii, Takasago, JP;
Shohei Yamamoto, Takasago, JP;
Masaru Mitsuda, Takasago, JP;
Kaneka Corporation, Kita-ku, Osaka-shi, JP;
Abstract
The present invention has its object to provide a method for producing an optically active hydroxycarboxylic acid derivative which is an intermediate important for production of medicines, agrochemicals, chemical products, and so on. The production method of the present invention comprises: carrying out a hydrogen-transfer reduction of a ketocarboxylic acid or a salt thereof by the reaction of an optically active diamine complex to produce an optically active hydroxycarboxylic acid derivative. According to the present invention, it is possible to safely and efficiently produce an industrially-useful optically active hydroxycarboxylic acid derivative.