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Synthesis of quaternary salts, anhydrobases, and 9-(1,2-dimethoxycarbonyl-3-benzoyl-7-indolizinylmethylene)-4-azafluorene based on 9-(γ-pyridylmethylene)azafluorenes

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Abstract

The ratios ofE- toZ-isomers of the quaternary salts prepared by mono- and diquaternization of 9-(γ-pyridylmethylene)-1-(4)-azafluorenes with iodomethane or bromoacetophenone have been determined. Conversion of the diphenacyl 9-(γ-pyridyl)-4-azafluorenium bromide into the corresponding anhydrobase (diylide), and also its condensation with acetylenedicarboxylate diesters to give 9-(1,2-dimethoxycarbonyl-3-benzoyl-7-indolizinylmethylene)-4-azafluorene have been carried out.

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Authors
  1. N. M. Kolyadina
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  2. A. T. Soldatenkov
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  3. O. M. Baktibaev
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  4. N. S. Prostakov
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Additional information

Russian University for Friendly Nations, Moscow 117923. Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 8, pp. 1088–1092, August, 1998.

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Kolyadina, N.M., Soldatenkov, A.T., Baktibaev, O.M. et al. Synthesis of quaternary salts, anhydrobases, and 9-(1,2-dimethoxycarbonyl-3-benzoyl-7-indolizinylmethylene)-4-azafluorene based on 9-(γ-pyridylmethylene)azafluorenes. Chem Heterocycl Compd 34, 937–940 (1998). https://doi.org/10.1007/BF02311330

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  • DOI: https://doi.org/10.1007/BF02311330

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