Chin. J. Org. Chem. ›› 1998, Vol. 18 ›› Issue (6): 567-571. Previous Articles     Next Articles

Original Articles

由Diels-Alder反应合成四氢咔唑

石鸿昌   

  1. 清华大学化学系.北京(100084)
  • 发布日期:1998-12-25

Synthesis of tetrahydrocarbazoles by Diels-Alder reaction

Shi Hongchang   

  1. Tsing Hua Univ, Dept Chem.Beijing(100084)
  • Published:1998-12-25

Tetrahydrocarbazoles have been prepared according to W.E.Noland's procedure from indoles, ketones and maleimides, with acid catalysis on a condensation and a Diels-Alder reaction. The use of ethyl acetate as solvent and p-toluene sulfonic acid as a catalyst has increased the reaction rate and the product yield. The 11 new tetrahydrocarbazoles have been prepared and their structures have been confirmed through ^1H NMR, IR and element analysis.

Key words: CARBAZOLE P, SOLVENTS, TETRAHYDRO-COMPOUNDS, BUTENE P, CATALYST, P- METHYLBENZENESULFONIC, DIELS-ALDER REACTION, IMIDE, ETHYL ACETATE, INDOLE

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