SYNTHESIS, STRUCTURE, AND PROPERTIES OF 1,3,5-TRIARYLPYRIDAZINES

Authors

  • Л. М. Потиха Taras Shevchenko National University, Kiev 01033
  • В. А. Ковтуненко Taras Shevchenko National University, Kiev 01033
  • А. В. Туров Taras Shevchenko National University, Kiev 01033

DOI:

https://doi.org/10.1007/6641

Keywords:

γ-bromodypnone, 1, 3, 5-triarylpyridazinium bromide, 5-triaryl-1, 4-dihydropyridazine, 6-dihydropyridazine, N, 2, 4-triphenyl-1H-pyrrole-1-amine

Abstract

Treatment of  γ-bromodypnone with arylhydrazines gives  differently structured products, i.e.  γ-bromo-dypnone hydrazones, 1-aryl-3,5-diphenyl-1,4-dihydropyridazines, 1-aryl-3,5-diphenyl-1,6-dihydro-pyridazines, and aromatic 1,3,5-triarylpyridazinium salts. We have studied the pattern of formation of all of the products and their properties. Heating an  alcohol solution of 1,3,5-triphenyl-1,4-dihydro-pyridazine gives N,2,4-triphenyl-1H-pyrrole-1-amine or to a 1,3,5-triphenylpyridazinium salt dependent upon the acidity of the medium. The product of addition of HBr to the 1,6-dihydropyridazine system is 5-bromo-1-(4-nitrophenyl)-3,5-diphenyl-1,4,5,6-tetrahydropyridazine.

How to Cite
Potikha, L. M.; Kovtunenko, V. A.; Turov, A. V.  Chem. Heterocycl. Compd. 2009, 45, 815. [Khim. Geterotsikl. Soedin. 2009, 1031.]

For this article in the English edition see DOI 10.1007/s10593-009-0354-z


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Published

2022-03-01

Issue

No. 7 (2009)

Section

Original Papers