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Aminophenyl‐X‐azolopyridines as precursors of heterocyclic azo dyes
Author(s) -
Savarino P.,
Viscardi G.,
Carpignano R.,
Borda A.,
Barni E.
Publication year - 1989
Publication title -
journal of heterocyclic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.321
H-Index - 59
eISSN - 1943-5193
pISSN - 0022-152X
DOI - 10.1002/jhet.5570260205
Subject(s) - chemistry , oxazole , pyridine , cationic polymerization , ring (chemistry) , reactivity (psychology) , spectral properties , nitro , combinatorial chemistry , organic chemistry , computational chemistry , medicine , alternative medicine , pathology , alkyl
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, and their physical properties and spectral parameters are discussed in comparison with those of analogous compounds. Some dyes in the oxazole series function as probes of the reactivity of the pentatomic ring.