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Report | Regular issue | Vol 20, No. 9, 1983, pp.1787-1792
Published online, 1st January, 1970
DOI: 10.3987/R-1983-09-1787
■ N-Polyazolymethanes. IV. Reaction of Benzotriazole with Methylene Chloride and Chloroform under Phase Transfer Conditions

Luis Avila, José Elguero, Sebastián Juliá, and José M. del Mazo

*Instituto de Química Orgánica General, C. S. I. C., Calle Juan de Cierva, 3, 28006 Madrid, Spain

Abstract

Six out of seven possible products obtained from benzotriazole and methylene chloride or chloroform have been isolated and characterized. An intermediate, 2-dichloromethylbenzotriazole, has been isolated for the first time. The relative amounts of the different isomers follow an (a+b)n relationship (n = 2 or 3). Proton and carbon-13 nmr spectroscopy and mass spectrometry have been used to identify the N,N’-bis-and N,N’,N”-trisbenzotriazole derivatives.