高等学校化学学报

高等学校化学学报 ›› 1996, Vol. 17 ›› Issue (7): 1100.

• 论文 • 上一篇    下一篇

α氧代膦酸酯取代基效应的1H、31P NMR研究

阎江丽1, 胡利明2, 刘钊杰2   

  1. 1. 华中师范大学分析测试中心, 武汉 430070;
    2. 华中师范大学农药化学研究所
  • 收稿日期:1995-06-30 出版日期:1996-07-24 发布日期:1996-07-24
  • 通讯作者: 阎江丽,女,32岁,讲师,博士研究生.
  • 作者简介:阎江丽,女,32岁,讲师,博士研究生.
  • 基金资助:

    湖北省自然科学基金

1H and31P NMR Study of the Substituent-effects of α-Oxyalkylphosphonates

YAN Jiang-Li1, HU Li-Ming2, LIU Zhao-Jie2   

  1. 1. The Center of Analysis and Testing, Central China Normal University, Wuhan 430070;
    2. The Institute of Pesticidal Chemistry, Central China Normal University, Wuhan
  • Received:1995-06-30 Online:1996-07-24 Published:1996-07-24

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摘要： 利用1H和31PNMR谱研究了21个含苯并唑酮环乙酰氧基烃基膦酸酯化合物及其取代基效应,探讨了取代基对2个酯基不等价性和对α-C上磁性核P、α-H化学位移及其偶合作用的影响。

关键词: 核磁共振, 取代基效应, 膦酸酯

Abstract: 1H and 31P NMRspectroscopies were usedto study 21 compounds of O,O-diakylα-(2-benzoxazolyl)oxyacetoxyalkyl-phosphonate.It is indicated that the non-equivalence between the two ester OR′groups is affected by the a-substituentes.The larger the substituent is,the greater the difference of 1H chemical shifts between the two ester OCH3 groups is.The a and ester substituents also affected α-magnetic nuclei, that is α-Hand α-31P.The regular dependences of their chemical shifts, as well as their scalar coupling interaction,on thesubstituents were diseussed in detail.

Key words: NMR, Substituent effect, Phosphonate

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