The title compound 2-amino-5,6-dihydro-4-(3,4-dimethoxyphenyl)-4H-benzo[h]- chromene-3-carbonitrile (C22H20N2O3, Mr = 360.40) was obtained by the reaction of 2-(3,4-dimeth- oxybenzylidene)-1-tetralone and malono...The title compound 2-amino-5,6-dihydro-4-(3,4-dimethoxyphenyl)-4H-benzo[h]- chromene-3-carbonitrile (C22H20N2O3, Mr = 360.40) was obtained by the reaction of 2-(3,4-dimeth- oxybenzylidene)-1-tetralone and malononitrile in DMF in the presence of KF-montmorillonite. Its structure was confirmed by IR and ^1H NMR spectra. The crystal is of monoclinic, space group C2/c with a = 24.101(6), b = 9.146(2), c = 17.238(3) ,A, β= 95.92(2)°, Z = 8, V= 3779.4(14) ,A^3, Dc = 1.267 g/cm^3, μ(MoKa) = 0.085 mm^-1, F(000) = 1520, R = 0.0409 and wR = 0.0981 for 2043 observed reflections (I 〉 2σ(I)).展开更多
The title compound (C28H19Cl2N) has been synthesized by the reaction of dibenzoylmethane and N-(4-chlorobenzylidene)-4-chlorobenzenamine promoted by low-valent titanium reagent, and characterized by elemental anal...The title compound (C28H19Cl2N) has been synthesized by the reaction of dibenzoylmethane and N-(4-chlorobenzylidene)-4-chlorobenzenamine promoted by low-valent titanium reagent, and characterized by elemental analysis, IR, ^1H NMR and X-ray single-crystal diffraction. The crystal belongs to monoclinic, space group P2 1/C with a = 9.952(2), b = 9.863(2), c = 23.460(6) A, β = 99.62(2)°, V = 2270.4(9) A^3, Mr = 440.34, Z = 4, Dc = 1.288 g/cm^3, μ(MoKa) = 0.301 mm^-1, F(000) = 912, the final R = 0.0387 and wR = 0.0793. X-ray analysis reveals that the four phenyl rings in the pyrrole ring are not coplanar.展开更多
基金Financially supported by the "Surpassing Project" Foundation of Jiangsu Province (No. QL9801) and Project of Scientific Research of Xuzhou Normal University (NO. 04XLA03)
文摘The title compound 2-amino-5,6-dihydro-4-(3,4-dimethoxyphenyl)-4H-benzo[h]- chromene-3-carbonitrile (C22H20N2O3, Mr = 360.40) was obtained by the reaction of 2-(3,4-dimeth- oxybenzylidene)-1-tetralone and malononitrile in DMF in the presence of KF-montmorillonite. Its structure was confirmed by IR and ^1H NMR spectra. The crystal is of monoclinic, space group C2/c with a = 24.101(6), b = 9.146(2), c = 17.238(3) ,A, β= 95.92(2)°, Z = 8, V= 3779.4(14) ,A^3, Dc = 1.267 g/cm^3, μ(MoKa) = 0.085 mm^-1, F(000) = 1520, R = 0.0409 and wR = 0.0981 for 2043 observed reflections (I 〉 2σ(I)).
基金This work was supported by the Natural Science Foundation of Jiangsu Education Department (No. 03KJB 150136)
文摘The title compound (C28H19Cl2N) has been synthesized by the reaction of dibenzoylmethane and N-(4-chlorobenzylidene)-4-chlorobenzenamine promoted by low-valent titanium reagent, and characterized by elemental analysis, IR, ^1H NMR and X-ray single-crystal diffraction. The crystal belongs to monoclinic, space group P2 1/C with a = 9.952(2), b = 9.863(2), c = 23.460(6) A, β = 99.62(2)°, V = 2270.4(9) A^3, Mr = 440.34, Z = 4, Dc = 1.288 g/cm^3, μ(MoKa) = 0.301 mm^-1, F(000) = 912, the final R = 0.0387 and wR = 0.0793. X-ray analysis reveals that the four phenyl rings in the pyrrole ring are not coplanar.