compounds are not generally stable at room temperature, therefore strategies were established to overcome this limitation. We present a systematic approach to obtain a stereochemically enriched benzyllithium compound, starting with the simple addition of a chiral auxiliary and ending by incorporation of the auxiliary in the substrate. Thereby, a very unusual dimer of a lithiated benzylsilane was obtained
烷基
锂化合物通常在室温下不稳定,因此建立了克服该限制的策略。我们提出了一种系统的方法,以获得立体
化学富集的苄基
锂化合物,该方法从简单添加手性助剂开始,并通过在基质中掺入助剂而结束。因此,获得了非常不寻常的
锂化苄基
硅烷的二聚体,可以通过添加路易斯碱将其拆分成立体
化学富集的单体。此外,我们能够通过使用量子
化学计算来了解造成这种立体
化学富集的因素,并通过结晶阐明了
锂化化合物的构型和相应的捕集产物。