73981-64-3

Upstream product

• 4346-59-2 para-methoxyphenyldiazonium chloride 
• 93-91-4 1-phenylbutan-1,3-dione 
• 33604-68-1 (4-methoxyphenyl)azo 4-methylphenyl sulfone 

Downstream Products

• 147675-20-5 5-(4-Methoxy-phenylazo)-4-methyl-6-phenyl-2-thioxo-1,2-dihydro-pyridine-3-carbonitrile 
• 147675-41-0 2-Chloro-5-(4-methoxy-phenylazo)-4-methyl-6-phenyl-nicotinonitrile 

Relevant academic research and scientific papers

Pyridine-Catalysed Desulfonylative Addition of β-Diketones to Arylazosulfones via Diaziridine Rearrangement

A pyridine-catalysed desulfonylative addition of β-diketones to arylazosulfones was developed to obtain diazenyl β-dicarbonyl compounds. The aryldiazenyl group was observed in the desired product from arylazosulfones, and this diazenylation reaction was achieved via a possible rearrangement process based on diaziridine ring cleavage. The scope of the protocol was investigated and a plausible mechanism was given. (Figure presented.).