144463-84-3

Basic information

• Product Name: Furo[3,4-c]quinoline-1,3-dione, 4-(2-methylphenyl)-
• CAS NO: 144463-84-3
• Molecular Formula: C18H11NO3
• Molecular Weight: 289.29
• Mol File: 144463-84-3.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: Furo[3,4-c]quinoline-1,3-dione, 4-(2-methylphenyl)-(CAS DataBase Reference)
• NIST Chemistry Reference: Furo[3,4-c]quinoline-1,3-dione, 4-(2-methylphenyl)-(144463-84-3)
• EPA Substance Registry System: Furo[3,4-c]quinoline-1,3-dione, 4-(2-methylphenyl)-(144463-84-3)

Safety Data

• Hazardous Substances Data: 144463-84-3(Hazardous Substances Data)

Upstream product

• 51725-82-7 ethyl (2-methylbenzoyl)acetate 
• 91-56-5 indole-2,3-dione 
• 933-88-0 ortho-toluoyl chloride 

Downstream Products

• 239-01-0 11H-benzo[a]carbazole 
• 243-51-6 11H-indeno[1,2-b]quinoline 
• 243-28-7 2,3-benzocarbazole 
• 205-25-4 benzo[c]carbazole 

Relevant articles and documents

Pyrolysis of quinoline-3,4-dicarboxylic anhydrides bearing 2-phenyl, 2-benzyl and 2-o-tolyl substituents: Formation of products of carbene insertion and addition

Flash vacuum pyrolysis of 2-phenylquinoline-3,4-dicarboxylic anhydride at 800°/0.06 mm gave indeno[1,2-b]indole (30-40%), which readily added nucleophiles Y- at C-10 to give 5,10-dihydro derivatives (Y=H, Me, Ph, NEt2, OMe, CH(COOMe)2 and CMe2NO2). Similar pyrolysis of the 2-benzylquinoline anhydride gave a 1:2 mixture of the (expected) linear 5H-benzo[b]carbazole and the (unexpected) angular 7H-benzo[c]carbazole. The isomeric 2-o-tolylquinoline anhydride on similar pyrolysis gave mainly 11H-benzo[a]carbazole (85%), isomeric benzocarbazoles (4%) and 11H-indeno[1,2-b]quinoline (2.6%). Most of these products are probably derived from exocyclic carbenes formed by aryne-carbene equilibration, but the last compound may be formed by direct aryne-methyl interaction.