By employing 1,1,3,3‐tetramethyl‐1,3‐(pinacolboryl)disiloxane as a novel silicon source, the N‐heterocyclic carbene copper complex catalyzed hydrosilylation of terminal alkynes was developed to prepare vinyldisiloxanes in a highly regio‐ and stereoselective manner. A number of functional groups, including ether, ester, cyano, nitro, halo, hydroxyl, cyclopropyl, and aryl groups, were tolerated under
通过使用1,1,3,3-四甲基-1,3-(频哪
硼硼烷基)二
硅氧烷作为新型
硅源,开发了N-杂环卡宾
铜络合物催化末端
炔烃的氢化
硅烷化反应,从而在高度区域和立体选择性的条件下制备
乙烯基二
硅氧烷方式。在最佳条件下,可以耐受许多官能团,包括醚,酯,
氰基,硝基,卤素,羟基,环丙基和芳基。通过使用密度泛函理论计算进行了机械研究。这种方法允许通过Pd催化的交叉偶联反应轻松进入不对称的二取代(E)烯烃。