Development of addtion of C-H bond to simple alkenes and alkynes by iridium catalysts

在碳碳多键上加成碳氢键是一种环境友好的分子转化，可以提供100%原子经济性的取代烯烃。本研究发现，阳离子铱催化剂对1,3-二羰基化合物在简单末端烯烃上的加成反应具有较高的活性和选择性。在所测试的Ir催化剂中，[Ir(cod)2]SbF6表现出最高的活性，可以高产出相应的产物。各种末端烯烃与1,3-二酮反应，产率高、良率高。

Addition of carbon-hydrogen bonds to carbon-carbon multiple bond is environmental-benign molecular transformations to afford substituted alkenes with 100% atom-economy. In the present study, cationic iridium catalysts were found to show high activity and selectivity toward the addition of 1,3-dicarbonyl compounds to simple terminal alkenes. Among Ir catalysts examined, [Ir(cod)2]SbF6 showed the highest activity to afford the corresponding products in high yields. Reaction of various terminal alkenes and 1,3-diketones produced the corresponding products in good to high yields.