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Methods of making pyrrolidones

United States Patent

March 16, 2004
View the Complete Patent at the US Patent & Trademark Office
Pacific Northwest National Laboratory - Visit the Technology Commercialization Program Website
The present invention provides methods for making N-methylpyrrolidine and analogous compounds via hydrogenation. Novel catalysts for this process, and novel conditions/yields are also described. Other process improvements may include extraction and hydrolysis steps. Some preferred reactions take place in the aqueous phase. Starting materials for making N-methylpyrrolidine may include succinic acid, N-methylsuccinimide, and their analogs.
Werpy; Todd (West Richland, WA), Frye, Jr.; John G. (Richland, WA), Wang; Yong (Richland, WA), Zacher; Alan H. (Kennewick, WA)
Battelle Memorial Institute (Richland, WA)
10/ 280,577
October 25, 2002
STATEMENT OF GOVERNMENT RIGHTS This invention was made with Government support under contract DE-AC0676RLO 1830 awarded by the U.S. Department of Energy. The Government has certain rights in this invention.