The acyl azolium intermediate is generally formed via internal oxidation of the Breslow intermediate or by addition of an external oxidant, such as the Kharasch oxidant 8. (Table ) Conventional methods has enabled the formation of numerous novel methodologies, where O-nucleophiles are well investigated, 18c, 19 on the contrary, methodologies for acylation of N-nucleophiles remain scarce. These methodologies suffer from using 8 in stoichiometric amounts, generating stoichiometric quantities of waste in the downstream process.