Unexpected products from the reductive trimethyl-silylation of bis(trimethylsilyl)acetylene
作者:Laverne C. Quass、Robert West、G. Ronald Husk
DOI:10.1016/s0022-328x(00)90593-x
日期:1970.1
6-tris(trimethylsilyl)-2,4,7-trisilaoctane (IV). Compound III was also obtained by the reductive trimethylsilylation of tris(trimethylsilyl)ethylene. The temperature dependent proton magnetic resonance spectra and other evidence for the structures of (III) and (IV) are discussed. A mechanism for the formation of (III) and (IV) involving an intramolecular metalation competing with metalation of trimethylchlorosilane
双(三甲基甲硅烷基)乙炔的还原性三甲基甲硅烷基化反应会导致两个意想不到的产物:2,2,4,4,7,7-六甲基-6,6-双(三甲基甲硅烷基)-2,4,7-三硅辛烷(III)和2 ,2,4,4,7,7-六甲基-3,6,6-三(三甲基甲硅烷基)-2,4,7-三硅辛烷(IV)。化合物III也通过三(三甲基甲硅烷基)乙烯的还原性三甲基甲硅烷基化而获得。讨论了与温度有关的质子磁共振谱以及(III)和(IV)结构的其他证据。提出了形成(III)和(IV)的机制,其涉及分子内金属化与三甲基氯硅烷的金属化竞争。