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:
Jul. 28, 2015
Filed:
Sep. 04, 2014
Applicant:
Council of Scientific & Industrial Research, Rafi Marg, New Delhi, IN;
Inventors:
Praveen Kumar Khatri, Dehradun, IN;
Suman Lata Jain, Dehradun, IN;
Alok Kumar Chaterjee, Dehradun, IN;
Sain Bir, Dehradun, IN;
Assignee:
COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH, New Delhi, IN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 207/267 (2006.01); C07D 207/404 (2006.01);
U.S. Cl.
CPC ...
C07D 207/404 (2013.01); C07D 207/267 (2013.01);
Abstract
The present invention relates to a process for microwave assisted synthesis of N-methyl pyrrolidone (NMP). Particularly the process relates to the synthesis of N-methyl succinimide or corresponding analogs by using microwave irradiation which on hydrogenation in the presence of a hydrogenating catalyst gives N-methyl pyrrolidone. Compared to the conventional heating microwave process requires less energy inputs and reduces the reaction time drastically from 5-6 h to 2-5 min.