The photocyclisation of 1,2-diarylpyridinium cations and the photobiscyclisation of 1,2,6-triarylpyridinium cations

Alan R. Katritzky, Zuriati Zakaria, Edward Lunt

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Abstract

Photocyclisation of 1-(2-pyridyl)-2-arylpyridiniums yields benzo[c]pyrido[1,2-a]-1,8-naphthyridinylinium cations. Photobiscyclisation of 1,2,6-triarylpyridiniums gives benzo[8,9]quinolizino[4,5,6,7-fed] phenanthridinylium cations and their 9-aza-derivatives. Electron donor substituents tend to lower the yields which are otherwise high. The structures are supported by X-ray crystallographic analysis and by ultraviolet and n.m.r. spectra.

Original languageEnglish
Pages (from-to)1879-1887
Number of pages9
JournalJournal of the Chemical Society, Perkin Transactions 1
Publication statusPublished - 1980
Externally publishedYes

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  • Chemistry(all)

Cite this

The photocyclisation of 1,2-diarylpyridinium cations and the photobiscyclisation of 1,2,6-triarylpyridinium cations. / Katritzky, Alan R.; Zakaria, Zuriati; Lunt, Edward.

In: Journal of the Chemical Society, Perkin Transactions 1, 1980, p. 1879-1887.

Research output: Contribution to journalArticle

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