19284-78-7

Upstream product

• 100-00-5 4-chlorobenzonitrile 
• 97-00-7 1-chloro-2,4-dinitro-benzene 
• 1193-02-8 4-aminotiophenol 
• 71190-35-7 1-(2,4-dinitrophenyl)-4,4'-bipyridinium chloride 

Downstream Products

• 131692-97-2 [4-(2,4-Dinitro-phenylsulfanyl)-phenyl]-[1-(1H-pyrrol-2-yl)-meth-(E)-ylidene]-amine 
• 131692-92-7 [4-(2,4-Dinitro-phenylsulfanyl)-phenyl]-[1-quinolin-4-yl-meth-(Z)-ylidene]-amine 
• 75333-79-8 4-(2,4-dinitro-benzenesulfonyl)-aniline 
• 14314-69-3 potassium 2,4-dinitrophenolate 
• 134251-08-4 Potassium p-aminothiophenolate 
• 75317-02-1 4-(2,4-Dinitro-benzenesulfinyl)-phenylamine 
• 131693-06-6 3-[4-(2,4-Dinitro-phenylsulfanyl)-phenyl]-2-(1H-pyrrol-2-yl)-thiazolidin-4-one 
• 131693-11-3 3-Chloro-1-[4-(2,4-dinitro-phenylsulfanyl)-phenyl]-4-quinolin-4-yl-azetidin-2-one 
• 131693-02-2 3-[4-(2,4-Dinitro-phenylsulfanyl)-phenyl]-2-quinolin-4-yl-thiazolidin-4-one 
• 128729-44-2 3-[4-(2,4-Dinitro-phenylsulfanyl)-phenyl]-2-pyridin-4-yl-thiazolidin-4-one 

Relevant academic research and scientific papers

Change of mechanism with a change of substituents for a Zincke reaction

The reaction between N-(2,4-dinitrophenyl)-4-(4-pyridyl)pyridinium chloride and 4-aminothiophenol led to an unexpected displacement of the 2,4-dinitrophenyl group, in contrast with the normal Zincke product formed with other nucleophilic 4-substituted anilines. Evidence for a SET process was obtained from EPR spectra of the reaction mixture.