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:
Apr. 30, 1991
Filed:
Oct. 03, 1988
Applicant:
Inventors:
Assignee:
Sumitomo Chemical Company, Limited, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07F / ;
U.S. Cl.
CPC ...
564-8 ; 564-9 ; 564302 ; 564304 ;
Abstract
The optically active benzylamine derivatives of the present invention are very useful for use as the asymmetric ligand of an asymmetric reducing agent. By using the optically active amine-boron complex prepared from the compound of the present invention, optically active products can be obtained in a specifically high optical yield. Moreover, the separation and recovery of the reaction products and asymmetric ligand can be easily achieved.