Electrochemical syntheses of heterocyclic compounds—III. Anodic oxidation of chalcone phenylhydrazone
1976; Elsevier BV; Volume: 21; Issue: 8 Linguagem: Inglês
10.1016/0013-4686(76)85160-2
ISSN1873-3859
AutoresIbro Tabaković, M. LACAN, Sh. Damoni,
Tópico(s)Analytical Chemistry and Sensors
ResumoAbstract Anodic oxidations of chalcone phenylhydrazone were performed in acetonitrile-lithium perchlorate electrolyte solution at platinum using controlled potentials. By means of TLC the following products were isolated: 1,3,5-triphenylpyrazole (1), 1,3,5-triphenyl-Δ2-pyrazoline (2a), 1,3,5-triphenyl-Δ2-pyrazolinium perchlorate (2), 4,4′-bis[3,5-diphenyl-Δ2-pyrazolynil(1)]-biphenyl (3a), protonated form of the compound 3a as a diperchlorate (3) and 4,4′-bis-[3,5-diphenylpyrazolyl-(1)]-biphenyl (4). A mechanism rationalizing these products as well as cyclic voltammetric and chronoamperometric data is proposed.
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