1016-94-0Relevant academic research and scientific papers
Reactivity and substituent effects in the cyclization of N-aryl-2-nitrosoanilines to phenazines
Wróbel, Zbigniew,Plichta, Karolina,Kwast, Andrzej
, p. 3147 - 3152 (2017/05/08)
Reactivity of variously substituted N-aryl-2-nitrosoanilines in the reaction of cyclization leading to phenazine derivatives, carried out in the presence of N,O-bis(trimethylsilyl)acetamide (BSA), was estimated on the base of the observed reaction times. A strong opposite effect of substituents located at position para to the nitroso group and those located para to the amino group in the side ring was observed. Mechanistic explanation, based on the electronic properties of the substituents and their mesomeric effects, was presented. The usefulness of the obtained data for the designed syntheses of phenazines was exposed.
Gas Phase Rearrangement Reactions of 2-(Arylamino)phenylaminyl Radicals
Cadogan, J. I. G.,Hutchison, H. Susan,McNab, Hamish
, p. 1407 - 1412 (2007/10/02)
Generation of the aminyl radicals (1; X=Y=NH, R=H or Me) by flash vacuum pyrolysis leads to diphenylamines, phenazines, and aminocarbazoles. 15N-Labelling studies have shown that the diphenylamine and phenazine products arise by equilibration of the initial aminyl radical via the spirodienyl radical. (4; X=Y=NH)zi820
