In the reactions of α-cyanocinnamonitrile or β-cyano-β-carbo-thoxy styrenewith 5,5-dimethyl-1,3-cyclohexanedione in the presence of ammonium acetate under microwaveirradiation without solvent, the2-amino-5,6,7,8-te...In the reactions of α-cyanocinnamonitrile or β-cyano-β-carbo-thoxy styrenewith 5,5-dimethyl-1,3-cyclohexanedione in the presence of ammonium acetate under microwaveirradiation without solvent, the2-amino-5,6,7,8-tetrahydro-5-oxo-4-aryl-7,7-dimethyl-4H-benzo-[b]-pyran derivatives were obtained.However, in the reactions of arylidenecyanoacetamide with 5,5-dimethyl-1,3-cyclohexanedione underthe same reaction conditions, the acridine derivatives were obtained. The structures of the productswere determined by single crystal X-ray diffraction analysis.展开更多
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
2-Amino-4-benzoyl-1-arylpyrrole-3-carbonitriles react with arylidene malonodinitriles, β-ketoesters and β- diketones to afford pyrrolo[2,3-b]pyridine derivatives.
文摘In the reactions of α-cyanocinnamonitrile or β-cyano-β-carbo-thoxy styrenewith 5,5-dimethyl-1,3-cyclohexanedione in the presence of ammonium acetate under microwaveirradiation without solvent, the2-amino-5,6,7,8-tetrahydro-5-oxo-4-aryl-7,7-dimethyl-4H-benzo-[b]-pyran derivatives were obtained.However, in the reactions of arylidenecyanoacetamide with 5,5-dimethyl-1,3-cyclohexanedione underthe same reaction conditions, the acridine derivatives were obtained. The structures of the productswere determined by single crystal X-ray diffraction analysis.
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2-Amino-4-benzoyl-1-arylpyrrole-3-carbonitriles react with arylidene malonodinitriles, β-ketoesters and β- diketones to afford pyrrolo[2,3-b]pyridine derivatives.
