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:
Oct. 20, 2015
Filed:
May. 10, 2011
Taito Hatakeyama, Saitama, JP;
Kunihiko Murata, Saitama, JP;
Kunihiko Tsutsumi, Saitama, JP;
Noriyuki Utsumi, Saitama, JP;
Taito Hatakeyama, Saitama, JP;
Kunihiko Murata, Saitama, JP;
Kunihiko Tsutsumi, Saitama, JP;
Noriyuki Utsumi, Saitama, JP;
Kanto Kagaku Kabushiki Kaisha, Tokyo, JP;
Abstract
The object of the present invention is to solve the problems in the prior arts, and to find more improved reaction conditions for suppressing the racemization of the product and obtaining an optically active alcohol at a high optical purity. The inventors achieved to solve the above problems by using a solvent system that is capable of resolving both an asymmetric catalyst and a formate salt, allowing the hydrogen source and the asymmetric catalyst to be present in the same phase.