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:
Dec. 09, 1986
Filed:
Oct. 16, 1984
Applicant:
Inventors:
Genichi Tsuchihashi, Tama, JP;
Keisuke Suzuki, Chigasaki, JP;
Assignee:
Toyo Stauffer Chemical Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
568322 ; 568361 ; 568404 ; 558 51 ; 549473 ;
Abstract
A preparing method of optically active ketones given by a general formula ##STR1## (wherein R represents a hydrocarbon group having 2 to 20 carbon atoms and R' represents a hydrocarbon group having 1 to 20 carbon atoms. The hydrocarbon groups of R and R' may contain functional groups having no influence on the reaction. But, * represents an asymmetric carbon atom, and R represents a more electron donating group than R' (except when R=R') through the rearrangement reaction by using organoaluminum compound.