86660-67-5

Basic information

• Product Name: 5-bromo-3-oxoindazolin-2-yl(methoxycarbonyl)methylenetriphenylphosphorane
• Synonyms: 5-bromo-3-oxoindazolin-2-yl(methoxycarbonyl)methylenetriphenylphosphorane
• CAS NO: 86660-67-5
• Molecular Weight: 545.372
• Mol File: 86660-67-5.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: 5-bromo-3-oxoindazolin-2-yl(methoxycarbonyl)methylenetriphenylphosphorane(CAS DataBase Reference)
• NIST Chemistry Reference: 5-bromo-3-oxoindazolin-2-yl(methoxycarbonyl)methylenetriphenylphosphorane(86660-67-5)
• EPA Substance Registry System: 5-bromo-3-oxoindazolin-2-yl(methoxycarbonyl)methylenetriphenylphosphorane(86660-67-5)

Safety Data

• Hazardous Substances Data: 86660-67-5(Hazardous Substances Data)

Upstream product

• 87-48-9 5-Bromo-1H-indole-2,3-dione 
• 21204-67-1 methyl (triphenylphosphoranylidene)acetate 
• 17617-25-3 bromoisatic acid 
• 109002-50-8 C₁₁H₈BrClN₂O₅ 
• 603-35-0 triphenylphosphine 

Downstream Products

• 80056-23-1 2-formyl-4,5-methylenedioxy-phenylazo(methoxycarbonyl)methylenetriphenylphosphorane 
• 103748-71-6 2-formyl-phenylazo(phenylsulphonyl)methylenetriphenylphosphorane 
• 86670-76-0 5-bromo-1-methyl-3-oxoindazolin-2-yl(methoxycarbonyl)methylenetriphenylphosphorane 
• 603-35-0 triphenylphosphine 
• 103748-78-3 6-bromo-2-methoxycarbonyl-4-oxo-dihydroquinazoline 

Relevant articles and documents

3-OXO-INDAZOLINE AND 4-OXO-DIHYDROQUINAZOLINE DERIVATIVES FROM ISATIC ACIDS

The coupling of diazonium salts from isatic acids with alkoxycarbonylmethylenephosphoranes leads directly to 3-oxo-indazolin-2-yl-(alkoxycarbonyl)methylenetriphenylphosphoranes, while coupling with methyl 2-chloroacetacetate gives 2-phenyl-glyoxylic acid.