By reaction of pentamethylcyclopentadienyllithium (pcpLi) with the corresponding chloro-silanes and -germanes, the h1-pcp-silanes and -germanes I–IX are synthesized. Nucleophilic substitution reactions at the pcp-chlorogermane VII lead to the h1-pcp-germanes X–XIII. The activation parameters for the sigmatropic rearrangements in these compounds have been evaluated from the 1H DNMR data. They show little
通过使五甲基环戊二烯基锂(pcpLi)与相应的氯硅烷和-锗烷反应,可以合成h 1 -pcp-硅烷和-锗烷I-IX。pcp- chlorogermane VII的亲核取代反应导致h 1 -pcp-germanes X–XIII。从1 H DNMR数据评估了这些化合物中σ重排的活化参数。它们显示出硅或锗上剩余配体对这些动态过程速度的影响很小。