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:
Jun. 26, 2012
Filed:
Apr. 03, 2009
Applicants:
Masaya Akashi, Naka-gun, JP;
Tsutomu Inoue, Chigasaki, JP;
Inventors:
Masaya Akashi, Naka-gun, JP;
Tsutomu Inoue, Chigasaki, JP;
Assignee:
Nippon Soda Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 209/00 (2006.01); C07F 15/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A novel ruthenium compound that is useful as an asymmetric reduction catalyst for carbonyl compounds. The ruthenium compound of the present invention is represented by a formula (I): (Ru(X)(Pxx)[RRC(NH)—RRC(NH)] (I)), and when this compound is used as an asymmetric reduction catalyst, an optically active aminoalcohol compound can be produced from an α-aminoketone, and particularly a compound represented by formula (IV), with high stereoselectivity and high yield.