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:
Jan. 15, 2013
Filed:
Apr. 22, 2009
Applicants:
Yasuhisa Fukuda, Ube, JP;
Junichi Kugimoto, Ube, JP;
Nobuhiro IL, Ube, JP;
Inventors:
Assignee:
Ube Industries, Ltd., Ube-shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 201/04 (2006.01); C07D 225/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to a process for producing an amide or lactam, particularly laurolactam, wherein catalytic amounts of an acidic chloride and a Lewis acid are used in Beckmann rearrangement of an oxime compound. In accordance with the process, side reactions during Beckmann rearrangement can be so controlled that selectivity can be improved and strong coloring in the reaction can be prevented, giving a high-quality amide or lactam.