Issue 5, 1969

Reactive intermediates. Part I. Synthesis and oxidation of 1- and 2-aminobenzotriazole

Abstract

1-Aminobenzotriazole is prepared in four steps from o-nitroaniline (54%) and, directly, by the amination of benzotriazole with hydroxylamine-O-sulphonic acid. 2-Aminobenzotriazole is also formed in the latter reaction. Oxidation of 1-aminobenzotriazole with lead tetra-acetate, under very mild conditions, gives benzyne almost quantitatively which, in the absence of trapping agents, dimerises to biphenylene in unusually high yield. Trace amounts of triphenylene and 2-acetoxybiphenylene are also formed. Oxidation of 2-aminobenzotriazole with lead tetra-acetate or with iodobenzene diacetate gives cis,cis-mucononitrile in high yield.

Article information

Article type
Paper

J. Chem. Soc. C, 1969, 742-747

Reactive intermediates. Part I. Synthesis and oxidation of 1- and 2-aminobenzotriazole

C. D. Campbell and C. W. Rees, J. Chem. Soc. C, 1969, 742 DOI: 10.1039/J39690000742

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