波谱学杂志 ›› 1997, Vol. 14 ›› Issue (2): 143-146.

• 研究论文 • 上一篇    下一篇

几类新型含硅唑类化合物1H NMR研究

刘军1, 李文明1, 王明安1, 王敏1, 陈馥衡1, 任天瑞2   

  1. 1. 中国农业大学基础学院应化系, 北京 100094;
    2. 中国科学院化冶所, 北京 100080
  • 收稿日期:1996-11-04 修回日期:1996-12-26 出版日期:1997-04-05 发布日期:2018-01-22
  • 基金资助:
    化工部新农药研制基金资助项目

STUDIES ON 1H NMR OF SOME AZOLE COMPOUNDS CONTAINING SILICON

Liu Jun1, Li Wenming1, Wang Mingan1, Wang Min1, Cheng Fuheng1, Ren Tianrui2   

  1. 1. Department of Applied Chemistry, China Agricultural University, Beijing 10009;
    2. Institute of Metallurgical Chemistry, Chinese Academy Sciences, Beijing 100080
  • Received:1996-11-04 Revised:1996-12-26 Online:1997-04-05 Published:2018-01-22

摘要: 讨论了4种新型含硅唑类化合物的1H NMR谱,它们是1-三甲基硅氧基-1-芳基(叔丁基)-2-唑基乙烷(1:1,2,4-三唑;2:咪唑;3:苯并三唑;4:苯并咪唑).芳基对Me3SiO的化学位移影响很小,而不同唑基屏蔽作用的差异影响Me3SiO的化学位移,其影响的次序为:

此结果得到了分子力学计算的证实.
化合物1中1位次甲基质子的化学位移(δH)与芳基对位取代基的取代基常数σp存在良好的线性关系,

关键词: 1H NMR, 唑, 屏蔽效应

Abstract: 1H NMR of four new kinds of azole compounds containing sillcon were investigated, they are 1-trimethylisilicoNOxy-1-aromatic-2-azole-ethane (Ⅰ:1, 2, 4-triazole; Ⅱ:imidazole; Ⅲ:benzotrizzole;Ⅳ:benzomidazole). The aromatic (R1) group has no obvious influence on δH of Me3SiO; the δH of Me3SiO were affected by shielding effect of different azole groups (R), the order is:

The result has been proved by Molecular Mechanics Calculation.
An good linear relationship between δH of CH and σp was obtained for compound Ⅰ.

Key words: 1H NMR, Azole, Shielding effect, Subustituent effect