Acyloxylation of different types of enol ethers (derived from aldehydes and ketones) by dimethyl peroxydicarbonate (DPDC) results in either addition to the double bond or in a formal replacement of an allylic hydrogen by a methoxycarbonyloxy group forming vicinal oxygenated hydrocarbons. 1,3-Oxygenated products via monoacyloxylation could not be observed. The results are compared with copper(I)-catalyzed acyloxylations of 1-methoxycyclohex-1-ene (1a) by means of tert-butyl peroxycarboxylates 2a, b.
二甲基过氧二碳酸酯 (DPDC) 对不同类型的烯醇醚(来自醛和酮)的酰氧基化反应,结果要么是在双键上加成,要么是以甲氧羰氧基的形式形式上替代了一个烯丙基氢,形成邻位氧化的碳氢化合物。没有观察到通过单酰氧基化形成的1,3-氧代产物。这些结果与铜(I)催化下的1-甲氧基环己-1-烯 (1a) 通过叔丁基过氧羧酸酯 2a, b 进行的酰氧基化反应的结果进行了比较。