作者:A. G. Brook、K. H. Pannell
DOI:10.1139/v70-617
日期:1970.12.1
The behavior of silylcarbonium ions, Si—C+, generated from various types of α-silylcarbinol with boron trifluoride under a variety of conditions of temperature and solvent has been examined. Four distinct types of reaction have been observed, depending on the conditions and the structure of the carbinol. These are: 1,2-migration of aryl groups from silicon to carbon, yielding a fluorosilane; Friedel–Crafts
已经研究了在各种温度和溶剂条件下由各种类型的 α-甲硅烷基甲醇与三氟化硼生成的甲硅烷基碳正离子 Si-C+ 的行为。根据条件和甲醇的结构,已观察到四种不同类型的反应。它们是: 芳基从硅到碳的 1,2-迁移,产生氟硅烷;芳族底物上碳正离子的 Friedel-Crafts 取代;消除水元素得到乙烯基硅烷;通过氢迁移异构化为β-甲硅烷基碳正离子,然后消除甲硅烷基,得到简单的氟硅烷和烯烃(即β-消除)。讨论了影响这些途径之间划分的因素。