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Synthesis and Crystal Structure of 2-Amino-5,6-dihydro-4-(3,4-dimethoxyphenyl)-4H-benzo[h]chromene-3-carbonitrile 被引量:1
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作者 zhuang qi-ya WU Nan +1 位作者 SHI Da-Qing TU Shu-Jiang 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 北大核心 2006年第7期775-778,共4页
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
关键词 KF-montmorillonite 2-aminochromene crystal structure SYNTHESIS
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Synthesis and Crystal Structure of 3,5-Diphenyl-1,2-di(4-chlorophenyl)pyrrole
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作者 SHI Da-Qing SHI Chun-Ling zhuang qi-ya 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 北大核心 2005年第11期1314-1317,共4页
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
关键词 PYRROLE low-valent titanium reagent crystal structure
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