A method is described for the oxidative Meyer–Schuster-type rearrangement of propargylic alcohols to (Z)-α-chloro- and α-iodoenones using VOCl3 as a multifunctional reagent. The vanadium reagent is found to serve as rearrangement promoter as well as an active chlorenium ion donor. Yields are improved when VOCl3 is employed in conjunction with N-halosuccinimide reagents, giving some insights into the
                                    描述了一种使用VOCl 3作为多功能试剂将炔
丙醇氧化成Meyer-Schuster型重排成(Z)-α-
氯-和α-
碘代烯酮的方法。发现
钒试剂可作为重排
促进剂以及活性的
氯离子供体。当VOCl 3与N-卤代琥珀
酰亚胺试剂结合使用时,收率得到提高,这为复杂的机理提供了一些见识。