Preparation of N-substituted pyrrolidones

Details Preparation of N-substituted pyrrolidones Preparation of N-substituted pyrrolidones

1991-06-04

1992-10-20

Springer, David B.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

548554, C07D20726

Patent

active

051571277

ABSTRACT:
A process for the preparation of N-substituted pyrrolidones by the catalytic hydrogenation of maleic anhydride, maleic acid and/or fumaric acid in the presence of a primary amine and a solvent, at elevated temperature and pressure, wherein a catalyst is used which contains cobalt and at least one of the elements manganese, copper, phosphorus, molybdenum and/or sodium.

REFERENCES:
patent: 3109005 (1963-10-01), Lidov
patent: 3198808 (1965-08-01), Himmele et al.
patent: 3884936 (1975-05-01), Hollstein

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