functionalization of ketones through double C–C bond cleavage strategy has been disclosed. This reaction provides a mild, practical method toward carbamoyl azides, which are versatile intermediates and buildingblocks in organicsynthesis. Based on relevant mechanistic studies, a unique and plausible C–C bond and N–O bond cleavage process is proposed, where the oxyamination intermediate plays an important
A one-pot, three-componentprotocol for the synthesis of 2-aminothiazoles promoted by iodine from readily available starting materials such as b-diketones/b-ketoesters, arylamines, and NH4SCN has been developed. A wide range of arylamines was tolerated well to produce the expected polysubstituted 2-aminothiazoles in moderate to good yields. The characteristic features of this methodology include operational