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Chemistry of Heterocyclic Compounds

, Volume 41, Issue 8, pp 1045–1052 | Cite as

Studies in Quinazoline Chemistry. 3. Synthesis of 2-(2-Pyridon-3-yl)- and 2-[Thieno[2,3-b]pyridin-2(3)-yl]-3,4-dihydroquinazolines

  • E. V. Gromachevskaya
  • E. A. Kaigorodova
  • S. I. Firgang
  • G. D. Krapivin
Article

Abstract

We have studied the reaction of o-aminophenyldiphenylcarbinol with substituted cyanothienopyridine, cyanopyridines, cyanopyridones, and cyanopyridinethiones. We have shown that in the case of pyridine derivatives, the reaction occurs with formation of 3,4-dihydroquinazolines, which exist in solution in two tautomeric forms. We have determined the general characteristics of initial fragmentation of the indicated products under electron impact.

Keywords

3,4-dihydroquinazolines cyanopyridines cyanopyridinethiones cyanopyridones tautomeric forms fragmentation 

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Copyright information

© Springer Science+Business Media, Inc. 2005

Authors and Affiliations

  • E. V. Gromachevskaya
    • 1
  • E. A. Kaigorodova
    • 1
  • S. I. Firgang
    • 1
  • G. D. Krapivin
    • 1
  1. 1.Kuban State Technological UniversityKrasnodarRussia

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