C-H activation of methyl arenes in the MnO2-mediated aroylation of N-chlorosulfoximines

An investigation into the reactivity profile of N-halogenated sulfoximines has led to the development of a new method for the synthesis of N-aroylated sulfoximines. This protocol involves the manganese oxide promoted C-H activation of methyl arenes to form an aroyl intermediate which then reacts readily with N-chlorosulfoximines to form a series of valuable aroyl sulfoximine derivatives in high yields. © 2014 American Chemical Society.