4-(Polyalkoxy phenyl)-2-pyrrolidones

Details 4-(Polyalkoxy phenyl)-2-pyrrolidones 4-(Polyalkoxy phenyl)-2-pyrrolidones

1976-02-18

1980-03-18

Berch, Mark L.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

560 42, 26032625, 26032647, 26032655M, 26032645, 2603265FL, 544141, 544372, 424274, 2603403, 2603405R, 546208, C07D70726, C07D40512, C07D40912

Patent

active

041939263

ABSTRACT:
4-(Polyalkoxyphenyl)-2-pyrrolidones of the formula ##STR1## wherein R.sub.1 and R.sub.2 each are hydrocarbon of up to 18 carbon atoms at least one being other than methyl, a heterocyclic ring, or alkyl of 1-5 carbon atoms substituted by halogen, OH, COOH, alkoxy, alkoxycarbonyl or an amino group; R' is H, alkyl, aryl or acyl; and X is O or S; possess neuropsychotropic activity. The compounds wherein X is O can be produced by saponifying and decarboxylating a corresponding 2-pyrrolidone-3-carboxylic acid alkyl ester or cyclizing a corresponding 3-phenyl-4-amino-butyric acid or alkyl ester thereof. The pyrrolidones can be converted to the corresponding thiopyrrolidones by reaction with phosphorous pentasulfide in the presence of base.

REFERENCES:
patent: 3632605 (1972-01-01), Debarre
patent: 3956314 (1976-05-01), Strubbe
Hackh's Chemical Dictionary, 3rd Edition, p. 687 (1950).

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