Catalytic preparation of thiolactams

Details Catalytic preparation of thiolactams Catalytic preparation of thiolactams

1990-03-01

1991-02-05

Springer, David B.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

546243, 540533, C07D207267, C07D21176, C07D22310

Patent

active

049906283

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 alumina-supported Group VIII metal or Group VIII metal compound (preferably palladium metal/oxide and/or iron oxide).

REFERENCES:
patent: 3306910 (1967-02-01), Louthan
patent: 3306911 (1967-02-01), Doss
patent: 3632605 (1972-01-01), Debarre et al.
patent: 4145352 (1979-03-01), Kubicek

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