96555-79-2

Basic information

• Product Name: 9a,10-dibenzoyl-4b,9,9a,10-tetrahydro-9-oxo-cis-indeno<1,2-a>indene
• Synonyms: 9a,10-dibenzoyl-4b,9,9a,10-tetrahydro-9-oxo-cis-indeno<1,2-a>indene
• CAS NO: 96555-79-2
• Molecular Weight: 428.487
• Mol File: 96555-79-2.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: 9a,10-dibenzoyl-4b,9,9a,10-tetrahydro-9-oxo-cis-indeno<1,2-a>indene(CAS DataBase Reference)
• NIST Chemistry Reference: 9a,10-dibenzoyl-4b,9,9a,10-tetrahydro-9-oxo-cis-indeno<1,2-a>indene(96555-79-2)
• EPA Substance Registry System: 9a,10-dibenzoyl-4b,9,9a,10-tetrahydro-9-oxo-cis-indeno<1,2-a>indene(96555-79-2)

Safety Data

• Hazardous Substances Data: 96555-79-2(Hazardous Substances Data)

Upstream product

• 1498-71-1 9-benzylanthracene 
• 110971-40-9 9-benzyl-11,12-dibenzoyl-9,10-dihydro-9,10-ethenoanthracene 
• 1087-09-8 1,4-diphenyl-but-2-yne-1,4-dione 
• 111004-90-1 {(4bR,9aR)-9-Benzoyl-10-[1-phenyl-meth-(E)-ylidene]-4b,10-dihydro-9H-indeno[1,2-a]inden-9a-yl}-phenyl-methanone 
• 529-86-2 9-anthrol 
• 96555-71-4 11,12-dibenzoyl-9,10-dihydro-9-hydroxy-9,10-ethenoanthracene 

Relevant articles and documents

Phototransformations of Bridgehead-Substituted Dibenzobarrelenes Steady-State and Laser Flash Photolysis Studies

The photochemistry of bridgehead-substituted dibenzobarrelene derivatives 1a-f has been investigated by steady-state photolysis, product analysis, and laser flash photolysis. 4b- or 8b-substituted dibenzosemibullvalenes or products derived thereof were formed in the course of irradiation of 9-(hydroxymethyl)-, 9-ethyl-, and 9-benzyl-substituted dibenzobarrelenes. 9-Cyclopentyl-substituted dibenzobarrelene upon irradiation gave the corresponding 4b-substituted dibenzosemibullvalene and dibenzocyclooctatetraene, whereas from the photolyzates of 9-isopropyl- and 9-cyclohexyl-substituted dibenzobarrelenes the corresponding dibenzocyclooctatetraenes were obtained as the only isolable products.The 337.1-nm laser flash photolysis of 1a-f in benzene results in the formation of their triplets in high yields (ΦT = 0.7-1.0).The triplets possess short lifetimes (0.03-2.2 μs) and are readily quenchable by oxygen, di-tert-butyl nitroxide, and ferrocene (kgT = (0.2-8) X 109 M-1s-1).In spite of high ΦT's, some of the dibenzobarrelene substrates are reluctant to undergo the barrelene-semibullvalene rearrangement under steady-state irradiation; this appears to be related to the unusually short lifetimes of their triplets; that is, decay modes other than those eventually leading to dibenzosemibullvalenes are available to these triplets.