142231-69-4

Upstream product

• 69038-98-8 3-chloro-1-phenylhydrazono-1-phenylsulfonyl-2-propanone 
• 100-34-5 benzene diazonium chloride 
• 23886-96-6 1-chloro-3-phenylsulphonylpropane-2-one 
• 2028-74-2 p-chlorobenzenediazonium chloride 
• 142231-66-1 1-phenyl-3-phenylsulfonylpyrazol-4-ol 

Relevant academic research and scientific papers

Synthesis of 1-Aryl-5-arylazo-3-phenylsulfonylpyrazol-4-ols from 1-Chloro-3-phenylsulfonyl-2-propanone

Treatment of 1-chloro-3-phenylsulfonyl-2-propanone (2) with arenediazonium chlorides gave 1-arylhydrazono-3-chloro-1-phenylsulfonyl-2-propanones 4, which were cyclized in the presence of sodium acetate to 1-aryl-3-phenylsulfonylpyrazol-4-ols 5B.Further tr