取代基的电子效应对苯甲酰苯胺衍生物NMR化学位移的影响  

THE INFLUENCE OF SUBSTITUENT ELECTRON EFFECT ON NMR CHEMICAL SHIFT OF SUBSTITUTED BENZANILIDE

作　　者：齐陈泽[1] 贾志胜[1] 崔育新[1] 张斌[1] 杨第伦[1] 

机构地区：[1]兰州大学化学系

出　　处：《波谱学杂志》1994年第1期99-102,共4页Chinese Journal of Magnetic Resonance

基　　金：国家自然科学基金

摘　　要：用４００ＭＨｚ超导核磁共振波谱仪测定了Ｘ取代苯甲酰苯胺（Ｘ＝ｐ－ＮＯ＿２，ｐ－Ｃｌ，ｐ－Ｂｒ，ｐ－１，Ｈ，ｐ－ＣＨ＿３，ｐ－ＯＣＨ＿３，ｍ－ＣＨ＿３）的￣１Ｈ和￣（１３）ＣＮＭＲ谱，按双参数方程进行计算，结果表明Ｎ－￣１Ｈ，羰基碳，与羰基相连的苯环碳和与氮相连的苯环碳等碳原子的化学位移与取代基共轭效应参数σ＿Ｒ和诱导效应参数σ＿Ｉ间的良好的线性关系。测得了双参数方程中适用于苯甲酰苯胺衍生物的３个常数ａ、ｂ和ｃ的值以及σ＿Ｒ、σ＿Ｉ的权重。The ~1H and ^(13)C NMR spectra for a series of X-substituted benzanilide were ob-tained and analyzed on the basis of dual parameter equation. The three constants inthe equation were determined． The relative importance of resonance effect and fieldeffect were calculated. It was found that the linear correlation between the chemicalshifts of N-~1H、C_1、C_2、C_3、C_6 and substituent effect σ_R、σ_I was good straight line.

关 键 词：取代基效应 苯甲酰苯胺 NMR 

分 类 号：O621.255[理学—有机化学]