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US4956476A Preparation of thiolactams 失效
硫醇内酯的制备

Preparation of thiolactams
摘要:
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.
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