Process for preparing 2-pyrrolidones

Details Process for preparing 2-pyrrolidones Process for preparing 2-pyrrolidones

1980-03-27

1981-07-21

Sutto, Anton H.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07D20738

Patent

active

042798205

ABSTRACT:
2-pyrrolidones are prepared by hydrogenating a succinonitrile in the liquid phase in the presence of ammonia by passing an ammoniacal solution of a succinonitrile over a fixed bed catalyst, particularly of the trickle-phase type, in which the catalyst is nickel on an alkaline support such as calcium hydroxide or calcium carbonate. Attractive yields are achieved without the expense of filtering off and separating used catalyst as in prior procedures.

REFERENCES:
patent: 3853922 (1974-12-01), Yamaguchi
patent: 3884936 (1975-05-01), Hollstein

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