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:
Mar. 02, 2004
Filed:
Apr. 23, 2001
Applicant:
Inventors:
Hubert Bonnard, Cerny, FR;
Laurence Ferruccio, Vert le Grand, FR;
Jean-Pierre Senet, Buthiers, FR;
Pierre-Yves Le Roy, Roques sur Garonne, FR;
Assignee:
SNPE, Paris Cedex, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
C07D / ;
Abstract
The invention relates to a process for the preparation of N,N′-carbonylbislactams by reaction of phosgene with at least one lactam which is characterized in that the tertiary amine is chosen from the group consisting of non-nucleophilic aliphatic tertiary amines. N,N′-Carbonylbislactams of high purity are thus obtained with good yields, both in the laboratory and on the industrial scale.
Bonnard, Hubert. (2004). Process for the preparation of n,n′-carbonylbislactams (U.S. Patent No. 6699988). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6699988
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile