Transition-metal-catalyzed reaction of diazocompounds, efficient synthesis of functionalized ethers by carbene insertion into the hydroxylic bond of alcohols
作者:A.F. Noels、A. Demonceau、N. Petiniot、A.J. Hubert、Ph. Teyssié
DOI:10.1016/0040-4020(82)80031-8
日期:——
An Efficient catalytic synthesis of unsaturated ethers by carbene insertion (with diazoesters as carbene precursors) into the OH bond of unsaturated alcohols is reported. The regioselectivity for the OH insertion is high. However, depending on the catalyst counter-ions and the diazoester alkoxy group, addition to the unsaturated centre can be promoted to some extent, yielding then cyclopropyl and cyclopropenyl
据报道,通过将卡宾(以重氮酸酯作为卡宾的前体)插入不饱和醇的OH键,可以有效地催化合成不饱和醚。OH插入的区域选择性高。然而,取决于催化剂的抗衡离子和重氮酯烷氧基,可以在一定程度上促进向不饱和中心的加成,然后得到环丙基和环丙烯基甲醇。讨论了反应的机理。