The reduction of derivatives of the type RnSiσ4-n (σ = Cl, OCH3) by some organomagnesium compounds RMgX at high temperature (⩾80°) leads to the hydrosilanes RR'SiH2 and RR'2SiH in various ratios according to the considered reagents. The results described in this publication constitute a first approach in the knowledge of the mechanism of these reductions. A deeper study of the mechanism is the subject
作者:Dietmar Seyferth、Dennis C. Annarelli、Steven C. Vick、Don P. Duncan
DOI:10.1016/s0022-328x(00)92575-0
日期:1980.11
Hexamethylsilirane has been prepared by the action of magnesium on dimethyl-bis(α-bromoisopropyl)silane in tetrahydrofuran (THF) solution. It was found to be highly reactive toward atmospheric oxygen and moisture and to decompose when heated in solution at 60–75°C. Its decomposition results in the extrusion of dimethylsilylene which may add to the tetramethylethylene produced in the decomposition to
六甲基甲硅烷基烷是通过镁在四氢呋喃(THF)溶液中的二甲基双(α-溴异丙基)硅烷作用下制备的。发现它对大气中的氧气和湿气具有很高的反应性,并且在60–75°C的溶液中加热时会分解。它的分解导致二甲基甲硅烷基的挤出,该二甲基甲硅烷基可能会添加到分解过程中产生的四甲基乙烯中,从而再生出硅烷,插入到硅烷的反应性SiC 2环中以生成八甲基-1,2-二硅环丁烷或低聚生成(Me 2 Si )n油。