Chin. J. Org. Chem. ›› 1995, Vol. 15 ›› Issue (4): 376-381. Previous Articles     Next Articles

Original Articles

吸电子基团取代的苯和三氧化硫的反应研究

邹友思;林静   

  1. 厦门大学化学系
  • 发布日期:1995-08-25

The reaction of deactivated benzene derivatives with sulfur trioxide

ZOU YOUSI;LIN JING   

  • Published:1995-08-25

The reaction of benzenesulfonic acid, dihenyl sulfone , nitrobenzene, benzaldehyde, benzoic acid, methyl benzoate and benzophenone with sulfur trioxide in dichloromethane at room temperature has been studied by analysis of the resulting mixtures of the sulfo derivatives with ^1H NMR. The initial sulfonation of the benzene derivatives yields the corresponding 3-sulfonic acid, further sulfonation yield small amunts of 3,5-disulfonate derivatives. Sulfonation of nitrovenzene yields only the 3-sulfonate derivatives the reaction of benzenesulfonic acid with 2.0 moles of SO~3 yields 3,3-di and 3,5,3-trisulfodiphenyl sulfone.

Key words: SULFONATION, AROMATIC COMPOUNDS, SULFUR TRIOXIDE, PASSIVATION

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