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. 10, 2013
Filed:
Mar. 04, 2010
Applicants:
Junichi Kugimoto, Ube, JP;
Tsunemi Sugimoto, Ube, JP;
Inventors:
Junichi Kugimoto, Ube, JP;
Tsunemi Sugimoto, Ube, JP;
Assignee:
Ube Industries, Ltd., Ube-shi, Yamaguchi, JP;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07D 201/04 (2006.01); C07D 225/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
This invention relates to a process for producing an amide compound by Beckmann rearrangement of an oxime compound using a compound having at least two electron-withdrawing leaving groups as a rearrangement catalyst, the process comprising a pre-preparation step in which the rearrangement catalyst and at least a part of the oxime compound are mixed and reacted; and a rearrangement reaction step in which the oxime compound is rearranged at a temperature higher than that in the pre-preparation step.