110423-43-3

Basic information

• Product Name: 3-phenyl-1⁽²⁾H-dibenz[e,g]indazole
• CAS NO: 110423-43-3
• Molecular Weight: 294.356
• Mol File: 110423-43-3.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 3-phenyl-1⁽²⁾H-dibenz[e,g]indazole(CAS DataBase Reference)
• NIST Chemistry Reference: 3-phenyl-1⁽²⁾H-dibenz[e,g]indazole(110423-43-3)
• EPA Substance Registry System: 3-phenyl-1⁽²⁾H-dibenz[e,g]indazole(110423-43-3)

Safety Data

• Hazardous Substances Data: 110423-43-3(Hazardous Substances Data)

Upstream product

• 536-74-3 phenylacetylene 
• 832-80-4 9-diazofluorenone 

Relevant articles and documents

Thermal Rearrangements of 3H- and 4H-Pyrazoles Prepared by Reactions of 9-Diazofluoren with Methyl Tetrolate and Methyl 3-Phenylpropiolate

9-Diazofluoren adds in Et2O at 20°C to methyltetrolate in keeping with Auwers rule and nonregioselectively adds to methyl-3-phenylpropiolate with the formation of spirocyclic 3H-pyrazoles. The methyltetrolate adduct at boiling in toluene converts into methyl 3a-methyl-3aH-dibenzo[e,g]indazole-3-carboxylate, at 190°C in benzene, into methyl 3-methyl-2H-dibenzo[e,g]indazole-2-carboxylate, and at 160°C in methanol, into 3-methyl-2H-dibenzo[e,g]indazole. Auwers adduct of methyl 3-phenylpropiolate at boiling in benzene gives cyclopropene derivative and at boiling in methanol isomerizes into methyl 3a-phenyl-3aHdibenzo[e,g]indazole-3-carboxylate. Anti-Auwers adduct at boiling in benzene isomerizes into methyl 2-phenylpyrazolo[1,5-f]phenanthridine-3-carboxylate.