2172-90-9

Basic information

• Product Name: 4-Methyl-2-nitro-1-phenoxybenzene
• Synonyms: 4-Methyl-2-nitro-1-phenoxybenzene
• CAS NO: 2172-90-9
• Molecular Weight: 229.235
• Mol File: 2172-90-9.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: 4-Methyl-2-nitro-1-phenoxybenzene(CAS DataBase Reference)
• NIST Chemistry Reference: 4-Methyl-2-nitro-1-phenoxybenzene(2172-90-9)
• EPA Substance Registry System: 4-Methyl-2-nitro-1-phenoxybenzene(2172-90-9)

Safety Data

• Hazardous Substances Data: 2172-90-9(Hazardous Substances Data)

Upstream product

• 12775-96-1 copper 
• 89-60-1 1-chloro-4-methyl-2-nitro-benzene 
• 108-95-2 phenol 
• 5326-34-1 4-Bromo-3-nitrotoluene 
• 100-67-4 potassium phenolate 

Downstream Products

• 60287-83-4 N-(5-methyl-2-phenoxy-phenyl)-formamide 
• 55113-22-9 8-methyl-dibenz[b,f][1,4]oxazepine 
• 2914-76-3 (4-methyl-2-nitro-phenyl)-(4-nitro-phenyl)-ether 
• 2172-91-0 5-Methyl-2-phenoxybenzenamine 

Relevant articles and documents

An improved synthesis of dibenzofurans by a free-radical cyclization

Reaction conditions for the formation of dibenzofurans from diazotized o-(aryloxy)anilines have been examined. Several promoters (hydroquinone, SnCl2, NaI, CuSO4, FeSO4, etc.) have been discovered; these act as electron donors and promote a free-radical mechanism. The best of these is FeSO4 which shortens the reaction time from hours to minutes and contributes to high yields (77-83%). We have been able to transform the cyclization to a reliable and convenient synthesis.