Rhodium-Catalyzed ipso-Borylation of Alkylthioarenes via C-S Bond Cleavage

Rhodium-catalyzed transformation of alkyl aryl sulfides into arylboronic acid pinacol esters via C-S bond cleavage is reported. In combination with transition-metal-catalyzed sitlfanyli group-guided regioselective C-H borylation reactions of alkylthioarenes, this method allows the synthesis of a diverse range of multisubstituted atenes.