A highly branch- and enantioselective 1,4-enynes synthesis from readily available terminal alkynes and racemic allylic carbonates by Sonogashira type synergistic Rh and Cu catalysis under neutral conditions has been developed. Aliphatic and aromatic terminal alkynes with various functional groups could be used directly. An inner-sphere reductive elimination C(sp)-C(sp3) bond formation mechanism is
在中性条件下,Sonogashira 型协同 Rh 和 Cu 催化从容易获得的末端
炔烃和外消旋烯
丙基碳酸酯合成高度支化和对映选择性的 1,4-烯炔。可以直接使用具有各种官能团的脂肪族和芳香族末端
炔烃。
化学计量反应支持内球体还原消除 C(sp)-C(sp3) 键形成机制。