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:
May. 11, 2010
Filed:
Jul. 27, 2007
Applicants:
Hiroshi Ueda, Ibaraki, JP;
Isao Kurimoto, Suita, JP;
Inventors:
Hiroshi Ueda, Ibaraki, JP;
Isao Kurimoto, Suita, JP;
Assignee:
Sumitomo Chemical Company, Limited, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 309/72 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process for preparing an optically active biaryl compound the formula (4): which comprises reacting an aromatic sulfonic acid ester compound of the formula (1): with an organic boron compound of the formula (2): at 70° C. or below in the presence of a nickel catalyst and a base. The biaryl compounds produced using this process possess a high optical purity and are useful as intermediates for medicaments, agrochemicals, etc.