Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1990-03-01
1990-09-11
Springer, David B.
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
540538, 546243, C07D20102, C07D207267, C07D21176, C07D22302
Patent
active
049564765
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 consisting essentially of alumina.
REFERENCES:
patent: 3306910 (1967-02-01), Louthan
patent: 3397210 (1968-08-01), Michalowicz
patent: 4145352 (1979-03-01), Kubiuk
Eastman Alan D.
Johnson Marvin M.
Skinner Richard D.
Brandes K. K.
Phillips Petroleum Company
Springer David B.
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