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:
Sep. 08, 2009
Filed:
Jan. 25, 2007
Applicants:
Alain Burgos, Les Ponts-de-Ce, FR;
Stëphane Frein, Saint-Aubin-de-Luigné, FR;
Inventors:
Alain Burgos, Les Ponts-de-Ce, FR;
Stëphane Frein, Saint-Aubin-de-Luigné, FR;
Assignee:
Zach System, Avrille, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 33/34 (2006.01); C07C 33/36 (2006.01); C07C 33/38 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process is used for the preparation of 1,3,2-oxazaborolidine compounds. This process prepares compounds of formula (I) or (IA): in which: This process avoids by-products and exhibits a very good stereospecificity.