121311-54-4Relevant articles and documents
Oxazole Ring Cleavage in the Course of the Synthesis of Heterocyclic Azo Dyes
Savarino, P,Viscardi, G,Carpignano, R,Barni, E
, p. 77 - 80 (2007/10/02)
The formation of azo dyes by coupling the diazonium salts of aminophenyloxazolopyridines with N,N-diethylaniline was shown to be a suitable probe to check the stability of the oxazole ring in the course of their preparation.Depending on experimental condi
Aminophenyl-X-azolopyridines as Precursors of Heterocyclic Azo Dyes
Savarino, P.,Viscardi, G.,Carpignano, R.,Borda, A.,Barni, E.
, p. 289 - 292 (2007/10/02)
Aminophenyl-X-azolopyridines (X = O, S, NH) are interesting intermediates for the synthesis of disperse azo dyes and, provided the pyridine nitrogen is quaternized, of their cationic counterparts.A set of novel amines and nitro derivatives is described, a