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Title: Methods of making pyrrolidones

Patent ·
OSTI ID:1174433
; ; ;

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.

Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC06-76RL01830
Assignee:
Battelle Memorial Institute (Richland, WA)
Patent Number(s):
6,603,021
Application Number:
09/884,602
OSTI ID:
1174433
Country of Publication:
United States
Language:
English

References (7)

New method for the preparation of N-aryl- and N-alkylpyrrolidones and some of their properties journal June 1971
An Integrated Process for the Production of Chemicals from Biologically Derived Succinic Acid book February 2001
N-Alkylation of Lactams with Phase Transfer Catalyst journal January 1979
Modified ZSM-5 Catalysts for the Synthesis of Five- and Six-Membered Heterocyclic Compounds journal July 1994
Catalytic Hydrogenation of Acetophenone Over Ruthenium Catalysts journal January 1996
N-Methyl-2-pyrrolidone. journal January 1983
N-Methylation of amides, lactams, and ureas journal February 1976

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Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY