32724-92-8

Upstream product

• 106-49-0 p-toluidine 
• 610-40-2 3,4-dinitro-chlorobenzene 
• 947590-21-8 5-chloro-N-(4-methylphenyl)-2-nitrosoaniline 

Downstream Products

• 947590-27-4 4-chloro-N²-p-tolyl-o-phenylenediamine 
• 1609559-82-1 C₃₁H₂₆ClN₂P 
• 861347-96-8 4-ethoxy-N²-p-tolyl-o-phenylenediamine 

Relevant academic research and scientific papers

A two-step oxidative aromatic substitution of hydrogen as a convenient way to 2-nitrodiarylamines

A method for the synthesis of differently substituted 2-nitrodiarylamines via nucleophilic substitution of hydrogen in nitroarenes is described. In the two-step procedure, the first step omits classical substitution of halogens in starting nitroarenes and occurs efficiently at the position ortho to the activating group. Subsequent oxidation of the 2-nitrosoanilines so formed is accomplished with a cheap and environmentally friendly reagent, sodium perborate, under mild conditions. In exceptional cases of the amine-substituted nitrosoanilines, more selective oxidant (IBX) is required.