Synthesis, crystal structures and theoretical calculations of new 1-[2-(5-chloro-2-benzoxazolinone-3-yl)acetyl]-3,5-diphenyl-4,5-dihydro-(1H)-pyrazoles
作者:Umut Salgın Gökşen、Yelda Bingöl Alpaslan、Nesrin Gökhan Kelekçi、Şamil Işık、Melike Ekizoğlu
DOI:10.1016/j.molstruc.2013.01.066
日期:2013.5
Abstract 1-[2-(5-Chloro-2-benzoxazolinone-3-yl)acetyl]-3-phenyl-5-(3-methoxyphenyl)-4,5-dihydro-(1 H )-pyrazole ( 5a ), 1-[2-(5-chloro-2-benzoxazolinone-3-yl)acetyl]-3-phenyl-5-(3,4-dimethoxyphenyl)-4,5-dihydro-(1 H )-pyrazole ( 5b ) and 1-[2-(5-chloro-2-benzoxazolinone-3-yl)acetyl]-3-(4-methylphenyl)-5-(2,3-dimethoxyphenyl)-4,5-dihydro-(1 H )-pyrazole ( 5c ) were synthesized. The crystal and molecular
摘要 1-[2-(5-Chloro-2-benzoxazolinone-3-yl)acetyl]-3-phenyl-5-(3-methoxyphenyl)-4,5-dihydro-(1H)-pyrazole (5a), 1-[2-(5-氯-2-苯并恶唑啉酮-3-基)乙酰]-3-苯基-5-(3,4-二甲氧基苯基)-4,5-二氢-(1 H)-吡唑(5b)和1-[2-(5-氯-2-苯并恶唑啉酮-3-基)乙酰]-3-(4-甲基苯基)-5-(2,3-二甲氧基苯基)-4,5-二氢-(1H)合成了-吡唑(5c)。化合物5a、5b和5c的晶体和分子结构通过元素分析、IR、 1 H NMR、ESI-MS和单晶X射线衍射确定。使用具有 6-31G(d,p) 基组的 DFT 方法计算优化的几何参数、振动频率和化学位移值。将计算出的振动频率和化学位移值与实验 IR 和 1 H NMR 值进行比较。结果表明,化合物