作者:M. Tiecco、L. Testaferri、M. Tingoli、E. Wenkert
DOI:10.1016/s0040-4020(01)91955-6
日期:——
developed by taking advantage of the sensitivity of reactions of Grignard reagents with aryl alkyl sulphides, catalyzed by low-valent nickel species, to steric effects. It is shown that the course of these reactions is influenced by the steric requirements of both the aryl and the alkyl moieties of the sulphides. Thus, selective mono-arylation and alkylation of easily available bis(alkylthio)benzenes
通过利用格氏试剂与低价镍物质催化的芳基烷基硫化物的反应对空间效应的敏感性,已经开发出用于将CS选择性转化为CC键的合成上有用的程序。结果表明,这些反应的过程受硫化物的芳基和烷基部分的空间要求的影响。因此,可以以中等至高收率实现容易获得的双(烷硫基)苯的选择性单芳基化和烷基化。这允许通过两个烷硫基官能团的连续取代将两个不同的芳基或烷基引入苯核。