Preparation of thioamides

Details Preparation of thioamides Preparation of thioamides

C - Chemistry, Metallurgy

07

C

C07C 327/40 (2006.01) C07C 327/42 (2006.01)

Patent

CA 2155715

A process for preparing an aliphatic thioamide comprises reacting a nitrile compound of the general formula R1R2R3C-CN, wherein R1 denotes a hydrogen atom, an alkyl radical containing from 1 to 5 carbon atoms or an aryl radical and R2 and R3 each denotes a hydrogen atom or an alkyl radical containing from 1 to 5 carbon atoms, with hydrogen sulphide, in the presence as catalyst of an aliphatic amine of the general formula R4R5R6N, wherein R4 denotes an alkyl radical containing 1 to 5 carbon atoms and R5 and R6 each denotes a hydrogen atom or an alkyl radical containing 1 to 5 carbon atoms, in a water-miscible polar solvent.

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