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Communication | Regular issue | Vol 23, No. 9, 1985, pp.2225-2228
Published online, 1st January, 1970
DOI: 10.3987/R-1985-09-2225
On the Possibility of Chlorotropy in Aromatic Azoles: The Case of 1,2,3-Triazoles and Benzotriazoles

Javier Cañada, Rosa Ma. Claramunt, Javier De Mendoza, and José Elguero*

*Centro de Química Orgánica ‘Manuel Lora-Tamayo‘, Instituto de Química Médica, C. S. I. C., Calle Juan de Cierva, 3, E-28006 Madrid, Spain

Abstract

A 13C n.m.r. study of N-chloro derivatives of 4,5-diphenyl-1,2,3-triazole and 5,6-dichloro-4,7-dimethylbenzotriazole reveals that neither a rapid chlorotropy nor a slow chlorine equilibration takes place. For the first time, a derivative of 2-chlorobenzotriazole has been characterized.