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Chemistry of Heterocyclic Compounds

, Volume 20, Issue 10, pp 1078–1081 | Cite as

Bisacylation of the anhydride and esters of 4-methyl-1,2,3,4-tetrahydrophthalic acid

  • V. I. Dulenko
  • V. M. Golyak
  • N. N. Alekseev
  • N. F. Gorenko
Article

Abstract

The bisacylation of the anhydride and esters of 4-methyl-1,2,3,4-tetrahydrophthalic acid by anhydrides of carboxylic acids in the presence of perchloric acid results in the formation of derivatives of 1,3-dialkyl-6, 7-dicarboxy-5,6,7,8-tetrahydro-2-benzopyrylium salts. Some reactions of the salts obtained, including their recyclization under the action of nucleophiles, have been studied. A convenient preparative method for the synthesis of 6,7-dicarboalkoxy-5,6,7,8-tetrahydroixoquinolines has been developed.

Keywords

Ester Organic Chemistry Anhydride Carboxylic Acid Perchloric Acid 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Plenum Publishing Corporation 1985

Authors and Affiliations

  • V. I. Dulenko
    • 1
  • V. M. Golyak
    • 1
  • N. N. Alekseev
    • 1
  • N. F. Gorenko
    • 1
  1. 1.Institute of Physical Organic Chemistry and Carbon ChemistryAcademy of Sciences of the Ukrainian SSRDonetsk

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