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Artigo Revisado por pares
BIBTEX RIS

The mechanisms of the oxidation of NADH analogues 2. N-Methyl-substituted 1,4-dihydropyridines

1993; Elsevier BV; Volume: 73; Issue: 2 Linguagem: Inglês

10.1016/1010-6030(93)80045-b

ISSN

1873-2666

Autores

Alexander I. Kruppa, Marc B. Taraban, N.E. Polyakov, Tatyana V. Leshina, V. K. Lusis, D. Muceniece, Г. Дубурс,

Tópico(s)

Photochromic and Fluorescence Chemistry

Resumo

The mechanism of the photoinitiated oxidation of N-methyl-substituted 1,4-dihydropyridines (1,4-DHPs) by quinones was studied in acetonitrile. Electron transfer with the formation of a radical ion pair (radical cation of 1,4-DHP and radical anion of acceptor) forms the initial stage of the process. Abstraction of a hydrogen atom from the 1,4-DHP radical cation in the bulk leads to the formation of the main product of photo-oxidation — pyridinium cation. Traces of water in the reaction mixture and the pH exert a significant influence on the photo-oxidation of N-substituted 1,4-DHPs.

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