高等学校化学学报

高等学校化学学报 ›› 1982, Vol. 3 ›› Issue (1): 77.

• 论文 • 上一篇    下一篇

O-乙基-O-芳基-N-异丙基硫代磷酰胺酯的1H、31P及13C核磁共振谱

张殿坤, 李国煒   

  1. 南开大学元素有机化学研究所
  • 收稿日期:1981-03-05 出版日期:1982-01-25 发布日期:1982-01-25

1H、31P AND 13CNMR SPECTRA OF O-ETHYL-O-ARYL-N-ISOPROPYLAMIDOTHIONOPHOSPHATES

Zhang Diankun, Li Guowei   

  1. The Institute of Elemento-Organic Chemistry, Nankai University, Tianjin
  • Received:1981-03-05 Online:1982-01-25 Published:1982-01-25

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摘要： 本文测量了(R=MeO、Bu、Me、H、Cl、Br、I和NO2)、类型化合物1H、31P和13CNMR谱化学位移值。结果指出:磷-31NMR化学位移值,随R取代基拉电子能力的增加而减小,其顺序是:MeO>Me>H>Br>NO2;而苯环质子平均化学位移值则相反,随R取代基拉电子能力的增加而增大,即NO2>Br>H>Me>MeO;但碳—13NMR化学位移值则没有上述规律性。并根据上述现象进行了简单的讨论。

Abstract: The 1H,31P and 13CNMR spectral parameters of O-ethyl-O-afyl-N-isopropylamidothionophosphates have been measured in CDCl3 solutions. It turns out that the 31P chemical, shifts decrease with an increasing of electron-withdrawing abilitya of the para-suhstituents Rin the order, MeO>Me>H>Br>NO2; On the contrary, 1HNMR shifts of phenyl ring (average shifts of A2B3 system) Increase with an increasing of electron-withdrawing ability of the para-substituents R,Viz.MeO<Me<H<Br<NO2; And 13C NMRare without a distinct ofder due to mutual interactions of the two substituents.

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