440352-73-8

Basic information

• Product Name: 2-(2-cyanobenzenesulfonyl)-4,5-dichloropyridazin-3-one
• Synonyms: 2-(2-cyanobenzenesulfonyl)-4,5-dichloropyridazin-3-one
• CAS NO: 440352-73-8
• Molecular Weight: 330.151
• Mol File: 440352-73-8.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 2-(2-cyanobenzenesulfonyl)-4,5-dichloropyridazin-3-one(CAS DataBase Reference)
• NIST Chemistry Reference: 2-(2-cyanobenzenesulfonyl)-4,5-dichloropyridazin-3-one(440352-73-8)
• EPA Substance Registry System: 2-(2-cyanobenzenesulfonyl)-4,5-dichloropyridazin-3-one(440352-73-8)

Safety Data

• Hazardous Substances Data: 440352-73-8(Hazardous Substances Data)

Upstream product

• 932-22-9 4,5-dichloro-2H-pyridazin-3-one 
• 69360-26-5 2-cyanobenzenesulfonyl chloride 

Downstream Products

• 440353-70-8 2-(piperidine-1-sulfonyl)-benzonitrile 

Relevant articles and documents

Arenesulfonylheterocycles (I): Synthesis and reactions of 2-benzenesulfonyl-4,5-dichloropyridazin-3-ones with amines

The direct sulfonylation of 4,5-dichloropyridazin-3-ones with some benzenesulfonyl chlorides in the presence of base in tetrahydrofuran gave only the corresponding N-sulfonylated product. The reaction of 2-benzenesulfonyl-4,5-dichloropyridazin-3-ones with some aliphatic amines under neutral conditions afforded 5-alkylamino-2-benzenesulfonyl-4-chloropyridazin-3-ones and/or the corresponding N-alkyl-benzenesulfonamides.