化学学报 ›› 1983, Vol. 41 ›› Issue (7): 637-647. 上一篇    下一篇

研究论文

氟烯的结构-特性关系 5.若干取代α,β,β;-三氟苯乙烯和α,β,β-三氟萘乙烯的合成及其^1^9F核磁共振参数与"歪电子"云概念间的联系

蒋锡夔;吴成九;伍正志   

  1. 中国科学院上海有机化学研究所
  • 发布日期:1983-07-15

Structure-property relationships of fluoroolefins 5. Synthesis of substituted α,β, β-trifluorostyrenes, α β, β-trifluoroethenylnaphthalenes hammett correlations of their ^1^9F NMR parameters and the concept of "distorted π-electron clouds"

JIANG XIKUI;WU CHENGJIU;WU ZHENGZHI   

  • Published:1983-07-15

关键词: 核磁共振谱法, 萘 P, 乙烯 P, 参数, 电子效应, 有机氟化合物, 苯乙烯 P, 氟19核磁共振谱法

An imprved new method for the synthesis of α, β, β-trifluorostyrene (TFS in THF) was used in the synthesis of six substituted TFS, together with α- and β- trifluoroethenylnaphthalenes. It involves the use of aromatic Grignard reagents with tetrafluoroethylene in THF. The yield of TFS is the highest among the four solvents tried (i.e. THF, ether, DME and dioxane). The structure of all products were established by elemental analysis, IR and ^1^9F NMR The correlations of their F-19 NMR parameters and the concept of "distorted π-electron clouds".

Key words: NMR SPECTROMETRY, NAPHTHALENE P, ETHYLENE P, PARAMETER, ELECTRONIC EFFECT, ORGANO FLUORINE COMPOUNDS, STYRENE P, F19 NMR SPECTROMETRY

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