Process for preparing 2-pyrrolidones

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

1977-09-01

1978-10-31

Daus, Donald G.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07D20726

Patent

active

041234383

ABSTRACT:
2-PYRROLIDONE OR A SUBSTITUTED 2-PYRROLIDONE IS PREPARED IN HIGH YIELDS BY HYDROGENATING SUCCINONITRILE, OR AN ALKYL-SUBSTITUTED SUCCINONITRILE, AT 50.degree.-200.degree. C. in the liquid phase, in the presence of ammonia and with a partial hydrogen pressure of about 1-50 atmospheres, then the reaction mixture is contacted with water at 100.degree.-300.degree. C. and the desired product recovered.

REFERENCES:
patent: 3095423 (1963-06-01), Copenhauer et al.
patent: 3103509 (1963-09-01), Schickh
patent: 3644402 (1972-02-01), Takagi et al.
patent: 3781298 (1973-12-01), Davis
patent: 4042599 (1977-08-01), Greene

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