Base‐Catalyzed Synthesis of N‐Aryl Thioacetamides from Multicomponent Reaction of Phenylacetylenes, Sulfur and Anilines.

In the presence of a base catalyst (20 mol %) such as DBU, DABCO or Na2S ⋅ 3H2O/N‐methylpyrrolidone, phenylacetylenes were found to efficiently undergo sulfurative amination with elemental sulfur and anilines under neat conditions, leading to N‐aryl thioamides with complete atom efficiency. [ABSTRACT FROM AUTHOR]