Arylation of acrylamide and acrylonitrile were carried out with various arenediazonium tetrafluoroborates in the presence of a catalytic amount of Pd(OAc)(2) in ethanol and a variety of substituted (E)-cinnamamides an...Arylation of acrylamide and acrylonitrile were carried out with various arenediazonium tetrafluoroborates in the presence of a catalytic amount of Pd(OAc)(2) in ethanol and a variety of substituted (E)-cinnamamides and (E)-cinnamonitriles were obtained in high yields under mild reaction conditions.展开更多
Palladium catalyzed ethoxycarbonylation reaction of arenediazonium tetrafluoroborates has been carried out under very mild conditions in the presence of a catalytic amount of Pd(OAc) 2 and CaO to afford a variety of s...Palladium catalyzed ethoxycarbonylation reaction of arenediazonium tetrafluoroborates has been carried out under very mild conditions in the presence of a catalytic amount of Pd(OAc) 2 and CaO to afford a variety of substituted ethyl benzoates in good yields. The effects of the catalyst and the base on ethoxycarbonylation reaction were investigated and CaO was shown to be the best base. The ethoxycarbonylation reaction can tolerate a variety of substituents in the benzene rings and has very high chemoselectivity. This paper provides a simple and practical procedure for syntheses of a variety of substituted ethyl benzoates.展开更多
基金This work was supported by the Natural Science Foundation of Jiangxi Province.
文摘Arylation of acrylamide and acrylonitrile were carried out with various arenediazonium tetrafluoroborates in the presence of a catalytic amount of Pd(OAc)(2) in ethanol and a variety of substituted (E)-cinnamamides and (E)-cinnamonitriles were obtained in high yields under mild reaction conditions.
文摘Palladium catalyzed ethoxycarbonylation reaction of arenediazonium tetrafluoroborates has been carried out under very mild conditions in the presence of a catalytic amount of Pd(OAc) 2 and CaO to afford a variety of substituted ethyl benzoates in good yields. The effects of the catalyst and the base on ethoxycarbonylation reaction were investigated and CaO was shown to be the best base. The ethoxycarbonylation reaction can tolerate a variety of substituents in the benzene rings and has very high chemoselectivity. This paper provides a simple and practical procedure for syntheses of a variety of substituted ethyl benzoates.
