Activation of the Vinylic C−Cl Bond by Complexation of Fe(CO)<sub>3</sub>: Palladium-Catalyzed Coupling Reactions of (η<sup>4</sup>-Chlorodiene)tricarbonyliron Complexes
作者:Qian Chen、Chaozhong Li
DOI:10.1021/om0606800
日期:2007.1.1
The reactions of 1-chloro- or 2-chloro-substituted (η4-1,3-cyclohexadiene)Fe(CO)3complexes with terminal alkynes under the catalysis of PdCl2(PPh3)2/CuI at 45−60 °C led to the formation of the corresponding Sonogashira coupling products in 64−97% yields. The complexes also underwent smoothly the intermolecular Heck reactions with activated alkenes under the catalysis of Pd(OAc)2/PPh3 at 60 °C to afford