Umpolung is a fundamental concept in organic chemistry, which provides an alternative strategy for the synthesis of target compounds which were not easily accessible by conventional methods. Herein, a mild and efficient PhI（OAc）_2-promoted umpolung acetoxylation reactions of enamides was developed for the synthesis of α-acetoxy ketones. The reactio...

PhI（OAc）_2-promoted umpolung acetoxylation of enamides for the synthesis of α-acetoxy ketones