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Synthesis and Structure of 2-Isobutyl-6-(2’,4’-dichlorophenyl)imidazo[2,1-b]-1,3,4-thiadiazole

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【Author】 LI Minga WEN Li-Rongb, c FU Wei-Junb HU Fang-Zhonga YANG Hua-Zhenga② a (State Key Laboratory and Institute of Elemento-organic Chemistry, Nankai University, Tianjin 300071, China) b (Qingdao University of Science and Technology, Qingdao 266042, China) c (National Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China)

【Abstract】 The crystal structure of the title compound, 2-isobutyl-6-(2?4?dichlorophenyl)- imidazo[2,1-b]-1,3,4-thiadiazole (C14H13Cl2N3S, Mr = 326.23), has been synthesized by the treatment of 2-amino-5-isobutyl-1,3,4-thiadiazole with a-chloroaceto-2,4-dichlorophenone and determined by single-crystal X-ray diffraction. The crystal belongs to monoclinic, space group P21/n with a = 12.483(7), b = 8.420(4), c = 14.998(8) ? b = 105.770(10)? V = 1517.0(14) 3, Z = 4, Dc = 1.428 g/cm3, S = 0.902, m(MoKa) = 0.558 mm-1, F (000) = 672, R = 0.0579 and wR = 0.1186. The X-ray analytic results showed that all ring atoms in the imidazothiadiazole moiety are almost coplanar. The dihedral angel between the phenyl group and hetero-cycle is 16.8(0.2)?更多还原

【关键词】 crystal structure； imidazo[2； 1-b]-1； 3； 4-thiadiazole； synthesis；
【Key words】 crystal structure； imidazo[2； 1-b]-1； 3； 4-thiadiazole； synthesis；

【基金】 The project was supported by NNSFC (20172031; 29832050); the NSF of shandong province (Y2003B01) and the Fund for the Doctoral Program of Higher Education

【文献出处】结构化学 ,Chinese Journal of Structural Chemistry , 编辑部邮箱 ,2004年01期

【分类号】O621
【被引频次】7
【下载频次】33

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