99532-73-7

Basic information

• Product Name: 2-phenyl-s-triazolo<1,2-a>pyridazine-1,3-dione
• Synonyms: 2-phenyl-s-triazolo<1,2-a>pyridazine-1,3-dione
• CAS NO: 99532-73-7
• Molecular Weight: 227.222
• Mol File: 99532-73-7.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 2-phenyl-s-triazolo<1,2-a>pyridazine-1,3-dione(CAS DataBase Reference)
• NIST Chemistry Reference: 2-phenyl-s-triazolo<1,2-a>pyridazine-1,3-dione(99532-73-7)
• EPA Substance Registry System: 2-phenyl-s-triazolo<1,2-a>pyridazine-1,3-dione(99532-73-7)

Safety Data

• Hazardous Substances Data: 99532-73-7(Hazardous Substances Data)

Upstream product

• 15971-64-9 N-phenyl-5,8-dihydro<1,2,4>triazolo<1,2-a>pyridazine-1,3-dione 

Downstream Products

• 61638-22-0 N,N'-diphenyl-1,2,4,5-tetraazabicyclo<2.2.0>oct-7-ene-1,2,4,5-bis(dicarboximide) 

Relevant articles and documents

Bridgehead Hydrazines. 2. Preparation and Photolysis of 2-Phenyl-s-triazolopyridazine-1,3-dione and of Pyridazinophthalazine-6,11-dione

The two title compounds 6 and 10 were prepared by Diels-Alder reactions of the appropriate cyclic azo compounds with butadiene followed by bromination and bisdehydrobromination.Photolysis of 6 in methanol resulted in 1,2- and 1,4-additions of the solvent to the dienic system and in (2 + 2) dimerization.Photolysis in dichloromethane resulted in rearrangement to a pyrrolotriazine and in (2 + 2) dimerization.Photolysis of 10 was solvent independent and gave only (4 + 2) dimer.Mechanistic aspects of the photoreactions are discussed.