钯催化 2-取代的 1,1-二硼基烯烃与(三甲基甲硅烷基)重氮甲烷的环丙烷化反应。通过在 R 和 SiMe 3取代基之间产生排他反构象的卡宾插入序列控制相对立体选择性。混合的 1,1-二硼基烯烃也有助于形成立体选择性 B、B、Si-环丙烷。用 NaO t Bu 的正交活化优先在硼部分顺位芳基上产生原型脱硼。当涉及手性硼基基序时,进一步氧化可以获得具有可控对映选择性的多官能环丙醇。
place at α-, β-, and γ-C–H bonds, giving polyborylated products including di-, tri-, tetra-, and even pentaborylalkanes. α-C–H borylation was generally found to be the preferred reaction of primary alkylboronic acid derivatives, whereas β- or γ-borylation also occurred if β- or γ-C–H bonds were located on the methyl group.