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. 03, 2014
Filed:
Oct. 19, 2011
Applicant:
Yujiro Hayashi, Sendai, JP;
Inventor:
Yujiro Hayashi, Sendai, JP;
Assignee:
Sumitomo Chemical Company, Limited, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 47/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a method of producing optically active 4-chloro-3-hydroxybutanal compound (2) by reacting chloroacetaldehyde with aldehyde compound (1) in the presence of optically active pyrrolidine compound (5). wherein each symbol is as defined in the specification.