邻位效应对质子化学位移的影响  

The influence of ortho-effect on chemical shift of proton

作　　者：康丽琴[1] 

机构地区：[1]上海应用技术学院化学工程系,上海200235

出　　处：《浙江师范大学学报（自然科学版）》2008年第2期187-189,共3页Journal of Zhejiang Normal University:Natural Sciences

摘　　要：用邻氯苯甲醛、对氯苯甲醛、邻甲氧基苯甲醛、对甲氧基苯甲醛分别与环己酮缩二乙醇反应,合成了4种α,α′-双亚苄基环烷酮类化合物.运用1H核磁共振手段,通过对双键碳上H化学位移的分析,阐述了邻位效应对质子化学位移的影响,认为是电子效应和空间效应等综合作用的结果.Four kinds of α, α′-bis （substituted benzylidene） cycloalkanones were synthesized by cross aldol condensation of aromatic aldehydes with cyclohexanone ketal, and token through hydrogen-nuclear magnetic resonance spectra. The influence of ortho-effect on chemical shift of proton was concluded and found ortho- effect was synthetic action of electronic effect and three-dimensional effect.

关 键 词：邻位效应 化学位移 核磁共振 电子效应 空间效应 

分 类 号：O62[理学—有机化学]