Nitroazines. 4. Polarographic behavior of 5-nitropyrazolo[3,4-b]pyridines and the esr spectra of their electrochemically generated free radicals

Autor:	V. L. Rusinov, Ya. P. Stradyn, Oleg N. Chupakhin, L. Kh. Baumane, R. A. Gavar, A. Yu. Petrov
Rok vydání:	1985
Předmět:	Polarography chemistry.chemical_compound Deprotonation chemistry Radical Organic Chemistry Pyridine Physical chemistry chemistry.chemical_element Dropping mercury electrode Nitrogen Ion Mercury (element)
Zdroj:	Chemistry of Heterocyclic Compounds. 21:582-587
ISSN:	1573-8353 0009-3122
Popis:	1-Methyl- and 1-phenyl-substituted derivatives of 5-nitropyrazolo[3,4-b]pyridines are reduced at a dropping mercury electrode in a single one-electron wave with the formation of radical anions in interval of potentials from −0.94 to −1.06 V. Compounds unsubstituted at the N(1) nitrogen atom give an additional polarographic wave at E1/2 = −1.4 V due to the reduction of the deprotonated form (anion). The potentials and HFS constants of the ESR spectra of the corresponding electrochemically generated free radicals are given.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f8ce29dff5fc1b055bd827d42df20426 https://doi.org/10.1007/bf00506078 Zobrazit plný text záznamu Full text from SpringerLink