STUDIES IN QUINAZOLINE CHEMISTRY. 3. SYNTHESIS OF 2-(2-PYRIDON-3-YL)- AND 2-[THIENO[2,3-<i>b</i>]PYRIDIN-2(3)-YL]-3,4-DIHYDROQUINAZOLINES

Authors

  • Е. В. Громачевская Kuban State Technological University, Krasnodar 350072
  • Е. А. Кайгородова Kuban State Technological University, Krasnodar 350072
  • С. И. Фирганг Kuban State Technological University, Krasnodar 350072
  • Г. Д. Крапивин Kuban State Technological University, Krasnodar 350072

DOI:

https://doi.org/10.1007/8226

Keywords:

3, 4-dihydroquinazolines, cyanopyridines, cyanopyridinethiones, cyanopyridones, tautomeric forms, fragmentation

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.

How to Cite
Gromachevskaya, E. V.; Kaigorodova, E. A.; Firgang, S. I.; Krapivin, G. D.  Chem. Heterocycl. Compd. 2005, 41, 1045. [Khim. Geterotsikl. Soedin. 2005, 1222.]

For this article in the English edition, see DOI 10.1007/s10593-005-0277-2


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Published

2023-10-30

Issue

No. 8 (2005)

Section

Original Papers