作者:Hubertus Appler、Lutz W. Gross、Bernd Mayer、Wilhelm P. Neumann
DOI:10.1016/0022-328x(85)80198-4
日期:1985.8
1]heptadienes thermolysis in order to generate free silylenes and the corresponding benzene derivatives are investigated. For this purpose, 29 new compounds of the types VII–X have been prepared. No indications for a polar mechanism or an intermediate biradical could be found. The degradation is exactly of first order in all cases investigated sofar, and is enhanced by phenyl groups at the bridgehead C atoms
研究了影响7-硅双环[2.2.1]庚二烯热解以生成游离亚甲硅及其相应苯衍生物的难易程度和机理的因素。为此,已经制备了29种新的VII-X型化合物。找不到极性机制或中间双自由基的迹象。如果相邻取代基允许与碱性环共面的构象,则降解在所有研究的情况下都完全是一级降解,并且通过桥头C原子上的苯基增强,但不被Si上的苯基增强。在这方面讨论了两种典型导数的X射线结构。特殊的机理是使碳氧甲氧基取代的化合物容易热解,生成环状硅烷烯醇醚中间体。