【摘要】 ^１３ＣＮＭＲ谱分析苯衍生物的亲电取代反应柴明辉（安徽大学化学系合肥２３００３９）摘要＊用１３ＣＮＭＲ谱对单取代苯和多取代苯的衍生物的亲电取代反应进行分析，得到取代基对苯环上碳原子１３Ｃ化学位移的影响与有机定性理论中取代基对亲电取代反应的定位效应?..更多还原

【Abstract】 The effects on electron cloud distribution caused by substituent groups in mono-and multisubeituted benzenes are studied by 13C NMR spectra in this paper.The results show that the substituent effects on 13C chemical chifts of benzene ring carbons correspond to those expected from the observed orientstion and activation effects of the substituent groups.In addition,the 13C chemical shifts of the para-position(δp) are linear with the H8mlnett constants of the para position(σp) in mono--substituted benzenes. Thus,the results obtained by studying 13C NMR sptra are in agreement with thase expecoted from qualitative and quantitative organic theories.更多还原