Synthesis, Characterization and Crystal Structure of (Z)-3-(4-Chlorophenylamino)-1-Phenylbut-2-En-1-One
作者:Siddappa A. Patil、Diego Gonzalez-Flores、Phillip A. Medina、Seth Dever、Michael Stentzel、Joshua Popp、Leslie W. Pineda、Mavis L. Montero、Joseph W. Ziller、Bradley D. Fahlman
DOI:10.1007/s10870-012-0276-y
日期:2012.6
The title compound (Z)-3-(4-chlorophenylamino)-1-phenylbut-2-en-1-one, has been prepared in good yield from the condensation reaction of benzoylacetone and 4-chloroaniline, catalyzed by two drops of formic acid. The compound was characterized by 1H NMR, 13C NMR, IR spectroscopy, mass spectrometry, elemental analysis, thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), and single crystal X-ray diffraction. The compound crystallized in the monoclinic crystal system with space group P21/n, Z = 4, V = 1370.3(7) Å3, and unit cell parameters a = 6.4063(19) Å, b = 7.085(2) Å, c = 30.194(9) Å, α = 90°, β = 90.824(5)° and γ = 90°. The crystal structure reveals that the compound exists in the enamino-ketone form and not the enol-imine form. Moreover, TGA/DSC analyses of the title compound was studied, showing two distinct endothermic peaks at temperatures of 134.05 and 302.71 °C, corresponding to melting and boiling points, respectively. The crystal structure reveals that the compound exists in the enamino-ketone form and not the enol-imine form. Moreover, TGA/DSC analyses of the title compound was studied, showing two distinct endothermic peaks at temperatures of 134.05 and 302.71 °C, corresponding to melting and boiling points, respectively .
标题化合物 (Z)-3-(4-chlorophenylamino)-1-phenylbut-2-en-1-one 是由苯甲酰丙酮和 4-chloroaniline 在两滴甲酸催化下发生的缩合反应制备而成,收率良好。该化合物通过 1H NMR、13C NMR、IR 光谱、质谱、元素分析、热重分析 (TGA)、差示扫描量热法 (DSC) 和单晶 X 射线衍射法进行了表征。化合物在单斜晶系中结晶,空间群为 P21/n,Z = 4,V = 1370.3(7) Å3,单胞参数 a = 6。4063(19) Å, b = 7.085(2) Å, c = 30.194(9) Å, α = 90°, β = 90.824(5)° 和 γ = 90°.晶体结构显示,该化合物以烯氨基酮形式而非烯醇亚胺形式存在。此外,还对标题化合物进行了 TGA/DSC 分析,结果表明在 134.05 和 302.71 ℃ 温度处有两个明显的内热峰,分别对应于熔点和沸点。晶体结构显示,该化合物以烯氨基酮的形式而不是烯醇亚胺的形式存在。此外,还研究了标题化合物的 TGA/DSC 分析,结果显示在 134.05 和 302.71 ℃ 温度下有两个明显的内热峰,分别对应于熔点和沸点。