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1,3,6-Triphenyl-6-phenylazo-1,4,5,6-tetrahydropyridazin

1.3.6-Triphenyl-6-phenylazo-1.4.5.6-tetrahydropyridazine. New syntheses and structural investigations

Neue Synthesen und Strukturuntersuchungen

  • Organische Chemie und Biochemie
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Monatshefte für Chemie / Chemical Monthly Aims and scope Submit manuscript

Abstract

Base induced 1.4-elimination of pyridine·HI from 1-(2-phenyl-2-phenylhydrazono-ethyl)-pyridinium iodide (6) yields 1.3.6-triphenyl-6-phenylazo-1.4.5.6-tetrahydropyridazine (8) the (4+2)-cyclodimer of the intermediate 1-phenyl-1-phenylazoethylene (7).8 can also be obtained by intramolecular oxidative cyclisation (with KMnO4) of 1.4-diphenylbutane-1.4-dione bisphenylhydrazone (12). Spectroscopic data (ms,1H-nmr, uv and ir/Raman) confirm the structure of8.

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Authors and Affiliations

  1. Institut für Organische und Pharmazeutische Chemie der Universität Innsbruck, Innrain 52a, A-6020, Innsbruck, Österreich

    J. Schantl

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  1. J. Schantl
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Oxidationsprodukte von Arylhydrazon-Verbindungen, 10. Mitt. (9. Mitt.1).

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Schantl, J. 1,3,6-Triphenyl-6-phenylazo-1,4,5,6-tetrahydropyridazin. Monatshefte für Chemie 105, 314–321 (1974). https://doi.org/10.1007/BF00907378

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  • DOI: https://doi.org/10.1007/BF00907378

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