作者:Pedro M. Deya、Mercedes Dopico、Angel Garcia Raso Jeronimo Morey、Jose M. Saa
DOI:10.1016/s0040-4020(01)81645-8
日期:1987.1
regioselectivity of the Fremy's salt oxidation of phenols, including a series of MNDO calculations of the intermediate phenoxy radicals, has been carried out. The analysis of these results has led us to establish a new rule for the para vs. ortho regioselectivity, namely: “C-4 unsubstituted phenols, as well as phenols substituted at C-4 with easy-to-displace groups, undergo oxidation (or oxidative degradation)
已对苯酚的弗雷米盐氧化的区域选择性进行了详细研究,包括对中间苯氧基的一系列MNDO计算。对这些结果的分析使我们建立了对位与邻位选择性的新规则,即:“ C-4未取代的酚以及在C-4处易取代的基团取代的酚会发生氧化( (或氧化降解)通过弗雷米氏盐的作用,从而最终提供相应的对醌”。由于现在的空间效应起着重要的作用,因此不能如此精确地制定关于邻位与邻位区域选择性的相似规则。