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1 INTRODUCTION Inorganic solid supports as catalysts resulting in higher selectivity, milder conditions and easier work-up has been reported as useful catalysts for many reactions [1~3]. Recently, we have reported the Knoevenagel condensation and some other reactions[4~6] catalyzed by KF-Al2O3. In this paper, we discussed the crystal structure of the title compound synthesized by the reaction of 2-cyano-3-(3,4-methylenedioxylphenyl)acrylonitrile and 5,5-dimethyl-1,3-cyclohexanedione in… 相似文献
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The title compound (C22H18N2O3) has been synthesized by the reaction of 3,4-dimethoxybenzaldehyde,malononitrile and 1-naphthol in ethanol in the presence of piperidine,and its structure was characterized by elemental analysis,IR,1H NMR and X-ray single-crystal diffraction.The crystal belongs to monoclinic,space group C2/c with a=24.221(6),b=9.016(2),c=17.003(5)A,β=93.16(1)°,V=3707(2)A3,Mr=358.38,Z=8,Dc=1.284g/cm3,μ(MoKα)=0.087mm-1,F(000)=1504,the final R=0.0432 and wR=0.1085.X-ray analysis reveals that the atoms of C(1),C(2),C(3),C(4),C(5) and O(1) form a boat-form six-membered ring in which the C(1)-C(2)(1.349(3)A) is a C=C double bond. 相似文献
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利用低价钛试剂促进的2-邻硝基苯基苯并咪唑与原甲酸酯或丙酮或固体光气的反应, 合成了一系列苯并咪唑并[1,2-c]喹唑啉衍生物, 化合物的结构经IR, 1H NMR, MS和元素分析确定, 化合物4c的结构经单晶X射线衍射分析进一步确证. 该方法具有原料易得、操作简便和产率高等优点. 相似文献
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