Photochromic benzo[g]quinoxalines

The photochromism of two 2,3-diarylbenzo[g]quinoxaline derivatives was explored. Irradiating 2,3-diphenylbenzo[g]quinoxaline with 350 nm light led to the formation of its photodimer, which could be reverted to its monomers either thermally or photochemically.The resulting photodimer absorbs at a lon...

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Veröffentlicht in:	Canadian journal of chemistry 2011-03, Vol.89 (3), p.297-302
Hauptverfasser:	Rakotomalala, Muriel, Katz, Michael, Voisin, Emilie, Pace, Tamara C. S, Bohne, Cornelia, Williams, Vance E
Format:	Artikel
Sprache:	eng
Schlagworte:	Anthracene Benzoates benzoquinoxaline Chemical compounds Chemical properties Chemical reactions Composition cycloaddition Photocatalysis Photochromic materials photochromie photochromism Quinoline
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container_title	Canadian journal of chemistry
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creator	Rakotomalala, Muriel Katz, Michael Voisin, Emilie Pace, Tamara C. S Bohne, Cornelia Williams, Vance E
description	The photochromism of two 2,3-diarylbenzo[g]quinoxaline derivatives was explored. Irradiating 2,3-diphenylbenzo[g]quinoxaline with 350 nm light led to the formation of its photodimer, which could be reverted to its monomers either thermally or photochemically.The resulting photodimer absorbs at a longer wavelength than analogous dianthracene derivatives. 2,3-Dipyridylbenzo[g]quinoxaline was also observed to undergo photodimerization. The ability of these readily prepared benzoquinoxaline derivatives to undergo [4 + 4]-photocycloaddition reactions makes them attractive alternatives to anthracene derivatives.
doi_str_mv	10.1139/V10-124
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subjects	Anthracene Benzoates benzoquinoxaline Chemical compounds Chemical properties Chemical reactions Composition cycloaddition Photocatalysis Photochromic materials photochromie photochromism Quinoline
title	Photochromic benzo[g]quinoxalines
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