Pd-NHC-catalyzed <i>N</i> -acylation of sulfoximines with aromatic esters

Aryl esters have emerged as commonly used reagents for acylation reactions in chemical synthesis, and can be utilized for <i>N</i>-acylation of sulfoximines in the present work. The reactions proceed efficiently with an air- and moisture-stable Pd-NHC (N-heterocyclic carbene) precatalyst, in which various NH-sulfoximines and functionalized aryl esters are well tolerated, enabling the formation of <i>N</i>-aroylsulfoximine products in good to excellent yields.