Catalytic Carbonylation and Carboxylation of Organosulfur Compounds via C-S Cleavage

Transition-metal-catalyzed carbonylation with CO gas occupies a privileged position in organic synthesis for the synthesis of carbonyl compounds. Although this attractive and useful chemistry has led many researchers to investigate carbonylative transformations of various organic (pseudo)halides, C-S-cleaving carbonylation of organosulfur compounds has been fairly limited. Recently, a broad spectrum of C-S-cleaving transformations has been emerging in the field of cross-coupling. In light of the importance of carbonyl compounds as well as considerable advancement for employing organosulfur compounds as competent surrogates of (pseudo)halides, carbonylative transformations of C-S bonds should be of high value. This Minireview focuses on catalytic C-S carbonylation of organosulfur compounds with CO or its equivalents. In addition, reductive carboxylation of C-S bonds with CO₂ is described.