Synthesis and Crystal Structure of 7

Synthesis and Crystal Structure of 7-Ethoxycarbonyl-2-methyl-6-methylthio-lH-imidazo[1,2-b]pyrazole

The title compound 7-ethoxycarbonyl-2-methyl-6-methylthio-1H-imidazo[1,2-b]-pyrazole (Mr = 239.29) was synthesized and structurally characterized by IR, 1H NMR and single-crystal X-ray diffraction. It belongs to the triclinic system, space group P1, with a = 8.0461(10), b = 8.5534(11), c = 9.5605(12) A, α = 64.804(2), β = 74.231(2), γ = 76.885(2)°, V= 568.27(12) A3, Z = 2, Dc = 1.398 g/cm3,μ= 0.274 mm-1, F(000) = 252, the final R.= 0.0454 and wR = 0.1261. A total of 3360 reflections were collected, of which 2466 were independent (Rint = 0.0138) and 2154 were observed with I > 2σ(Ⅰ).

作 者： LI Yan JIA Jiong SHAO Teng-Fei ZHAO Gui-Long WANG Jian-Wu   作者单位： School of Chemistry and Chemical Engineering,Shandong University,Jinan 250100,China  刊 名： 结构化学  ISTIC SCI PKU 英文刊名： CHINESE JOURNAL OF STRUCTURAL CHEMISTRY  年，卷(期)： 2009 28(2)  分类号： O6  关键词： synthesis   crystal structure   1H-imidazo[1   2-b] pyrazole  

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