Formylation Products of Thioamides; Part 111. A Novel Route to Substituted 2-Aminothiophenes by the Reaction ofS-Alkylated Thioamides with Carboxylic Acid Derivatives
Three component reactions of olefins, amines, and sulfur were studied. Thioamidation of styrenes is base-controlled, and 2-phenylethanethioamides and benzothioamides were obtained selectively in the presence of two different bases. This protocol offers a simple and efficient procedure for the synthesis of thioamides.
Visible-light-mediated eosin Y catalyzed aerobic desulfurization of thioamides into amides
作者:Arvind K. Yadav、Vishnu P. Srivastava、Lal Dhar S. Yadav
DOI:10.1039/c3nj00870c
日期:——
A novel method for the metal-free efficient synthesis of amides from thioamides using visible light and in an air atmosphere in the presence of eosin Y as an organophotoredox catalyst is reported. The protocol involves aerobic desulfurization–oxygenation of thioamides into amides in good to excellent yields at r.t. in a one-pot operation under mild conditions with the formation of nontoxic elemental