Formazans of the pyrimidine series

descriptionPublicationkeyboard_double_arrow_right Article 01 Oct 1975 English Publisher:Springer Science and Business Media LLCJournal:Chemistry of Heterocyclic Compounds, volume 11, pages 1,208-1,211 (issn: 0009-3122, eissn: 1573-8353,

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Authors: E. S. Karavaeva; N. P. Bednyagina; T. A. Sharkova; I. I. Mudretsova;

doi: 10.1007/bf00667624

Formazans of the pyrimidine series

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Abstract

A series of 1-(2′-pyrimidyl)-3,5-diarylformazans was synthesized. Their structures were studied by means of IR and electronic spectroscopy, and assumptions regarding the most probable tautomeric forms of the investigated compounds were made. The ionization constants of the formazans were measured. It was found that 2,5-diphenyltetrazoles are formed instead of the expected tetrazolium salts in the reaction of 1-(2′-pyrimidyl)-3,5-diphenylformazans with N-bromosuccinimide.

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