52333-98-9

Upstream product

• 52334-61-9 3-(4-nitro-benzoylamino)-1H-pyridin-2-one 
• 122-04-3 4-nitro-benzoyl chloride 
• 6298-19-7 2-chloro-3-aminopyridine 
• 121311-55-5 N-(2-Chloro-pyridin-3-yl)-4-nitro-benzamide 

Downstream Products

• 52334-21-1 N,N-dimethyl-4-oxazolo[5,4-b]pyridin-2-yl-aniline 
• 121311-51-1 2-(4-aminophenyl)pyrido<3,2-d>oxazole 
• 121311-53-3 4-(4-Diethylamino-phenylazo)-N-(2-hydroxy-pyridin-3-yl)-benzamide 
• 121311-52-2 Diethyl-[4-(4-oxazolo[5,4-b]pyridin-2-yl-phenylazo)-phenyl]-amine 

Relevant academic research and scientific papers

Aminophenyl-X-azolopyridines as Precursors of Heterocyclic Azo Dyes

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

Oxazole Ring Cleavage in the Course of the Synthesis of Heterocyclic Azo Dyes

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

Anti-inflammatory oxazole[4,5-b]pyridines

The various isomers of oxazolo- and thiazolopyridines having utility as antiinflammatory, antipyretic and analgesic agents are prepared by condensation of an appropriate amino-hydroxypyridine or amino-mercaptopyridine with a carboxylic acid, halide or anhydride.