Preparation of thiolactams

Details Preparation of thiolactams Preparation of thiolactams

1990-03-29

1991-03-26

Springer, David B.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D20100, C07D207267

Patent

active

050030825

ABSTRACT:
The reaction of lactams (preferably N-methyl-2-pyrrolidone) with hydrogen sulfide to thiolactams (preferably N-methyl-2-thiopyrrolidone) is conducted in the presence of a catalyst comprising an inorganic support material and a phosphorus and oxygen containing compounds.

REFERENCES:
patent: 3050472 (1962-08-01), Morrell
patent: 3105101 (1963-09-01), Evans
patent: 3306910 (1967-02-01), Louthan
patent: 3306911 (1967-02-01), Doss
patent: 3344166 (1967-09-01), Zinsstag
patent: 3632605 (1972-01-01), Debarre
patent: 4145352 (1979-03-01), Kubicek
patent: 4757143 (1988-07-01), Vanderpool et al.

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