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Original scientific paper

Electrochemical Synthesis of Heterocyclic Compounds: X. Anodic Synthesis of s-Triazolo [3,4-a)pyridinium Salt Derivatives

M. Batušić ; Faculty of Technology, »Dura Pucar Stari« University, 78000 Banjaluka, Yugoslavia
I. Tabaković ; Faculty of Technology, »Dura Pucar Stari« University, 78000 Banjaluka, Yugoslavia
S. Crljenak ; Faculty of Technology, »Dura Pucar Stari« University, 78000 Banjaluka, Yugoslavia


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Abstract

A novel way of preparing s-triazolo[3,4-a] pyridinium salts by .
anodic oxidation of aryl hydrazones of 2-acetylpyridine, 2-benzoylpyridine
and 2-formylpyridine is described. Controlled potential
electrolysis was carried out in CH3CN-Et4NX media using a Pt-
electrode and a divided cell.
The products were obtained in high yield (79-91°/o) and
purity. It has been shown that the conformation of the starting
hydrazone does not affect the yield of products and s-triazolo
[3,4-a]pyridinium salts differing in anions can be prepared merely
by using a supporting electrolyte carrying the desired anion (Clo4- ,
Tso-, BFn.

Keywords

Hrčak ID:

194329

URI

https://hrcak.srce.hr/194329

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