Chemistry Letters p. 1489 - 1492 (1980)
Update date:2022-08-03
Topics:
Bru, Nuria
Vilarrasa, Jaume
2,5-Diazacyclopentadienylidene (2H-imidazolidene), generated either by photolysis or thermolysis from 2-diazo-2H-imidazole, reacts with benzene derivatives to give mainly a mixture of o-, m-, p-substitued 2-phenylimidazoles.The carbene shows a strong diradical character, in sharp contrast with the well-known behavior of cyclopentadienylidene.
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