Octathexyloctagermacubane (1, thexyl = 1,1,2-trimethylpropyl) was synthesized by the condensation of trichlorothexylgermane with Mg/MgBr2, and structurally characterized by X-ray crystallography. As in the case of the thexyl-substituted octasilacubane, a ring-opening reaction followed by skeletal rearrangement of 1 took place with PCl5 to give endo, exo- and exo,exo-4,8-dichlorooctathexyltetracyclo[3.3.0.02,7.03,6]octagermanes. Treatment of these dichlorides with sodium afforded octagermacubane 1.
八己基十八
锗巴烷(1,thexyl = 1,1,2-三甲基丙基)是通过三
氯新戊基
锗与 Mg/MgBr2 缩合合成的,并通过 X 射线晶体学对其结构进行了表征。与己基取代的八
硅二烷的情况一样,1 与 PCl5 发生开环反应,然后进行骨架重排,得到内、外和外、外-4,8-二
氯八己基四环[3.3.0.02,7.03,6]八
锗。用
钠处理这些二
氯化物可得到八
锗 1。