856632-74-1

Basic information

• Product Name: 2,4-dibromo-6-diazocyclohexa-2,4-dien-1-one
• CAS NO: 856632-74-1
• Molecular Weight: 277.903
• Mol File: 856632-74-1.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 2,4-dibromo-6-diazocyclohexa-2,4-dien-1-one(CAS DataBase Reference)
• NIST Chemistry Reference: 2,4-dibromo-6-diazocyclohexa-2,4-dien-1-one(856632-74-1)
• EPA Substance Registry System: 2,4-dibromo-6-diazocyclohexa-2,4-dien-1-one(856632-74-1)

Safety Data

• Hazardous Substances Data: 856632-74-1(Hazardous Substances Data)

Upstream product

• 10539-14-7 2‐amino‐4,6‐dibromophenol 
• 15969-09-2 2,4-dibromo-6-nitrophenol 

Downstream Products

• 109286-90-0 2-(5,7-dibromo-3H-benz[e][1,3,4]oxadiazin-3-yl)-benzoic acid methyl ester 
• 3442-16-8 4,6-Dibrom-benzochinon-(1,2)- 

Relevant articles and documents

Synthesis and some transformations of polybrominated quinone diazides

The reduction of polybrominated o- and p-nitrophenols with granular tin in concentrated aqueous HCl gave polybrominated aminophenols which were diazotized with sodium nitrite in concentrated sulfuric acid at 0°C to obtain polybrominated o- and p-quinone diazides. Their thermolysis with elimination of nitrogen generated ketocarbenes which reacted with acetylacetone to form insertion products at the activated methylene group. Ketocarbenes generated from o-quinone diazides reacted with typical dipolarophiles such as acetonitrile, benzonitrile, styrene, and phenylacetylene to afford the corresponding [3 + 2]-cycloaddition products.