Synthesis and Crystal Structure of Dimethyl-3-(4-bromophenyl)-1-phenyl-4,5-dihydro-1H-pyrazole-4,5-dicarboxylate

被引：0
|
作者：
Li Ming [1 ]
Pan Lei [1 ]
Wen Li-Rong [1 ]
机构：
[1] Qingdao Univ Sci & Technol, Coll Chem & Mol Engn, Minist Educ, Key Lab Ecochem Engn, Qingdao 266042, Peoples R China
来源：
CHINESE JOURNAL OF STRUCTURAL CHEMISTRY | 2010年 / 29卷 / 04期
基金：
中国国家自然科学基金;
关键词：
DMAD; zwitterion; pyrazole; MCRs; crystal structure; QUINOLINE-DMAD ZWITTERION; BAYLIS-HILLMAN REACTION; 1,4-DIPOLAR CYCLOADDITION; DERIVATIVES; ANALOGS; ETHYL;
D O I：
暂无
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The title compound (C19H17BrN2O4) was synthesized via a one-pot procedure starting from 4-bromobenzaldehyde, dimethyl acetylenedicarboxylate (DMAD) and phenylhydrazine with pyridine as the catalyst. Its structure was determined by single-crystal X-ray diffraction analysis. The crystal belongs to the monoclinic system, space group P2(1)/c with a = 11.115(3), b = 8.090(2), c = 20.211(5) angstrom, beta = 97.032(5)degrees, V = 1803.7(8) angstrom(3), Z = 4, M-r = 417.25, D-c= 1.536 g/cm(3), mu = 2.306 mm(-1), F(000) = 852, the final R = 0.0403 and wR = 0.0895 for 2215 observed reflections with I > 2 sigma(I).
引用
收藏
页码：495 / 498
页数：4
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