A binuclear chloride-bridged organopalladium(II) complex and its role in Heck reaction

The arylation reaction between electron-deficient or electron-rich alkenes and several aryl bromides and heteroaryl bromides in the presence of the complex [Pd2Cl2{(C6H5)2PO···H···OP(C6H5)2}2] (1) shows good activity and outstanding yields. The reaction tolerates several functionalities and excellent regiocontrol with electron-deficient alkenes. Taking into account the easy metal-template synthesis and remarkable air stability of this complex, it is a good example to understand the diphenylphosphinito complexes utility in catalysis.