59275-23-9Relevant academic research and scientific papers
Structure and Reactivity of 3,3-Disubstituted 1-(5-Nitro-2,1-benzisothiazol-3-yl)triazenes
Prikryl, Josef,Lycka, Antonin,Bertolasi, Valerio,Holcapek, Michal,Machacek, Vladimir
, p. 4413 - 4421 (2007/10/03)
The reaction between 5-nitro-2,1-benzisothiazole-3-diazonium species and N-substituted anilines produces the 1-(5-nitro-2,1-benzisothiazol-3-yl)-3,3-disubstituted triazenes 1. These triazenes are highly stable, and even in strongly acidic medium (0.5 molL -1 H2SO4) they are only slowly decomposed back to the diazonium ion and substituted anilinium ion (for the N-ethyl derivative in 0.5 mol·L-1 H2SO4 at 25 °C, t1/2 ≈ 7 h). A series of six triazenes were characterised by their 1H and 13C NMR spectra and mass spectra. Two of the triazenes were also identified by X-ray crystallography. Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003.
