89912-00-5

Basic information

• Product Name: C₂₈H₂₀N₆O₄
• CAS NO: 89912-00-5
• Molecular Weight: 504.505
• Mol File: 89912-00-5.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: C₂₈H₂₀N₆O₄(CAS DataBase Reference)
• NIST Chemistry Reference: C₂₈H₂₀N₆O₄(89912-00-5)
• EPA Substance Registry System: C₂₈H₂₀N₆O₄(89912-00-5)

Safety Data

• Hazardous Substances Data: 89912-00-5(Hazardous Substances Data)

Upstream product

• 89901-20-2 N-chlorosulphonyl-2,9b-dihydro-9b-methyl-1H-indeno<1,7-cd>azepin-1-one 
• 90144-81-3 2a,4a-dibromo-4a,7b-dihydro-7b-methyl-2aH-cyclopentindene 
• 4233-33-4 4-Phenyl-1,2,4-triazolidine-3,5-dione 
• 79644-47-6 7b-methyl-7bH-cyclopentindene 

Relevant articles and documents

Tricyclic annulenes. Part 3. Reactions of 7b-Methyl-7bH-cyclopentindene

The chemical reactions of the tricyclic annulene (1) are described.The annulene is rapidly hydrogenated to give the fully saturated hydrocarbon (2).It undergoes a substitution reaction with electrophiles and has been nitrated, acetylated, formylated, and sulphonated.The preferential sites of attack of electrophiles are C-5 and C-1.Although the annulene (1) does not undergo cycloaddition reaction with tetracyanoethylene, dimethyl acetylenedicarboxylate, or benzyne, it does react with 4-phenyl-1,2,4-triazole-3,5-dione in refluxing 1,2-dimethoxyethane to give the 2:1 adduct (17) and with chlorosulphonyl isocyanate to give the ring-expanded indenoazepine (19).Hydrolysis of (19) gives the amide (20), which shows some antiaromatic character.