Fluoride ion induced rearrangements of chloromethyl-substituted silanes: carbanionic character of groups undergoing migration
作者:Robert Damrauer、Stephen E. Danahey、Vernon E. Yost
DOI:10.1021/ja00336a060
日期:1984.11
On montre que le chloromethyl trimethyl silane reagit avec KF ou CsF en presence de 18-crown-6 dans un solvant aromatique pour conduire exclusivement au dimethyl ethyl fluoro silane. Mecanisme
在 montre que le 氯甲基三甲基硅烷反应剂 avec KF 或 CsF 上存在 de 18-crown-6 dans 非溶剂芳香剂倾倒 au 二甲基乙基氟硅烷。机制
Preparation of Some Bis(fluorodimethylsilyl)alkanes
作者:Makoto Kumada、Kiyomi Naka、Yoshihiro Yamamoto
DOI:10.1246/bcsj.37.871
日期:1964.6
demethylation of bis(trimethylsilyl)alkanes of the general formula Me3SiRSiMe3 by concentrated sulfuric acid, followed by fluorination with ammonium hydrogenfluoride, can successfully be used for the method generally applicable to the preparation of bis(fluorodimethylsilyl)- alkanes, FMe2SiRSiMe2F. Although Si-Me cleavage was the main reaction in most cases, some part of the reaction gave a cleavage between
已经确定,通式 Me3SiRSiMe3 的双(三甲基甲硅烷基)烷烃用浓硫酸脱甲基,然后用氟化氢铵氟化,可以成功地用于通常适用于制备双(氟二甲基甲硅烷基)烷烃的方法, FMe2SiRSiMe2F。尽管在大多数情况下 Si-Me 裂解是主要反应,但部分反应在硅和 R 基团之间产生裂解。发现 R 从硅裂解的难易度按以下顺序降低:CH2,CHMe> ( )2>( )3>( )4,( )5,( )6>CHCl>CMe2