91331-38-3Relevant academic research and scientific papers
Vergleichende Untersuchungen zur Arylaminierung von Benzofuroxan-Derivaten
Goehrmann, B.,Niclas, H.-J.
, p. 1054 - 1060 (2007/10/02)
The amination of benzofuroxan 2a and monosubstituted benzofuroxans 2b-e with alkali metal salts of formanilides 1 and sodium acetanilides 6 is described.Thus, the reaction of 2a with 6a-d gives the benzotriazole 1-oxides 3a-d.The benzofuroxans 2b and 2c react with sodium formanilides to give the isomeric mixtures 3f/3g and 3h/3i.Potassium 4-nitroformanilide reduces 2a furnishing benzofurazan 7.Nitrosubstituted benzofuroxans such as 2d and 2e undergo a carbocyclic amination leading to the benzofurazans 8 and 9.
The Reaction of Some o-Nitroazobenzenes with Hydroxylamine
Wilshire, John F.K.
, p. 617 - 622 (2007/10/02)
The reaction of some representative o-nitroazobenzenes with hydroxylamine in ethanolic sodium hydroxide solution gave good to excellent yields of the corresponding 2-aryl-2H-benzotriazole 1-oxides.In some cases, the corresponding parent 2-aryl-2H-benzotriazoles were also obtained.Under the same reaction conditions, nitrobenzene was essentially unreactive.It Is suggested that the reactive species is diimide.
