波谱学杂志 ›› 1996, Vol. 13 ›› Issue (6): 557-565.

• 研究论文 • 上一篇    下一篇

多取代(口山)酮及其糖甙(口山)酮的1H和13C NMR研究

罗湘宁1, 纪兰菊2, 孙洪发2   

  1. 1. 青海省测试计算中心, 西宁 810008;
    2. 中国科学院西北高原生物研究所, 西宁 810008
  • 收稿日期:1996-05-02 修回日期:1996-06-06 出版日期:1996-12-05 发布日期:2018-01-17

1H AND 13C NMR STUDY OF POLYSUBSTITUTED XANTHONE-O-GLYCOSIDE

Luo Xiangning1, Ji Lanju2, Sun Hongfa2   

  1. 1. Qingbai Testing and Computing Centre, Xining 810008;
    2. Northwest Plateau Institute of Biology, Xining City, The Chinese Academy of Science, Xining 810008
  • Received:1996-05-02 Revised:1996-06-06 Online:1996-12-05 Published:2018-01-17

摘要: 总结了作者所测定过的多取代(口山)酮及其糖甙类衍生物的1H和13C NMR位移数据,着重就取代基与结构的关系进行了探讨,认为多取代(口山)酮1位和8位取代情况直接影响着其他位置的化学位移数值,这一现象可以直接用于该类化合物的结构鉴定.

关键词: 取代(口山)酮, 糖甙(口山)酮, NMR

Abstract: 1H and 13C NMR spectra of polysubstituted xanthones and corresponding xanthone-O-glycoside, which are obtained from the plants of Qinghai-Xizang plateau,have been observed.The discussion are mainly focused on the relation between the chemical shifts and mode of substituted groups on 1,8 position of polysubstituted xanthone.1H chemical shifts of substituted hydroxy on 1,8 position of xanthone have been summarised.The changes of chemical shift of carbon on xanthone ring caused by -O-sugar have been calculated and discussed.The result can be used to elucidate the structure of polysubstituted xanthone and xanthone-O-glycoslde.

Key words: Substituted xanthone, NMR, Xanthone-O-gycoside