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

• 作 者: 李艳 贾炯 邵腾飞 赵桂龙 王建武
• 机 构: School of Chemistry and Chemical Engineering, Shandong University,Jinan 250100, China,
• 出 处: 结构化学
• 发表日期: 2009年02期
• 关键词: pyrazole structurally triclinic belongs fused afford Angle melting aromatic stac

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), α = 64.804(2), β = 74.231(2), γ = 76.885(2)°, V = 568.27(12)3, 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).

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, α = 64.804 (2), β = 74.231 = 76.885 (2) °, V = 568.27 (12) 3, Z = 2, Dc = 1.398 g / cm3, μ = 0.274 mm -1, F (000) = 252, the final R = 0.0454 and wR = A total of 3360 reflections were collected, of which 2466 were independent (Rint = 0.0138) and 2154 were observed with I> 2σ (I).