synthesis of multisubstituted H–C(SR)(Bpin)(SiMe3) compounds. Consecutive base-assisted transformations of HC(S)(B) (Si) systems lead to deborylative alkylations, Sommelet–Haüser rearrangements, and deprotoalkylations. Intramolecular cyclizations can be selectively performed either via desilylative or deborylative manifolds by fine-tuning the base employed.
将重氮衍
生物Me 3 SiCHN 2插入pinB–SRσ键(R = Ph,Tol,Bn)可直接合成多取代的H–C(SR)(Bpin)(SiMe 3)化合物。HC(S)(B)(Si)系统的连续碱辅助转化导致脱
硼烷基化,Sommelet-Haüser重排和脱烷基化。分子内环化可以通过脱甲
硅烷基或脱甲
硼烷基歧管通过微调所用的碱选择性地进行。