C-S bond formation in aromatic substrates using Mn(II)-promoted montmorillonite clays

Abstract

Direct introduction of -SCH₃ groups into activated aromatic and hetero aromatic compounds has been achieved by reaction with dimethyldisulfide over a MnCl₂-promoted K-10 montmorillonite. Unlike ZnCl₂/K-10, the Mn- promoted clay appears to promote reaction by coordination of the aromatic substrate at the active site followed by attack of the disulfide at the activated aromatic.