33836-49-6

Basic information

• Product Name: 2,4-dihydro-1,3-diphenylcyclopenta(b)indene
• Synonyms: 2,4-dihydro-1,3-diphenylcyclopenta(b)indene
• CAS NO: 33836-49-6
• Molecular Weight: 306.407
• Mol File: 33836-49-6.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: 2,4-dihydro-1,3-diphenylcyclopenta(b)indene(CAS DataBase Reference)
• NIST Chemistry Reference: 2,4-dihydro-1,3-diphenylcyclopenta(b)indene(33836-49-6)
• EPA Substance Registry System: 2,4-dihydro-1,3-diphenylcyclopenta(b)indene(33836-49-6)

Safety Data

• Hazardous Substances Data: 33836-49-6(Hazardous Substances Data)

Upstream product

• 53317-87-6 tris[triphenylphosphinegold(I)]oxonium tetrafluoroborate 
• 123528-41-6 tetracyanoethylene*C₁₂H₈(C₆H₅)2 
• 252878-48-1 2-(benzoylvinyl)benzaldehyde 
• 104-55-2 3-phenyl-propenal 
• 6583-74-0 1,3-diphenylcyclopenta[a]indene-2,8-dione 

Relevant articles and documents

N-Heterocyclic Carbene/Lewis Acid Dual Catalysis for the Divergent Construction of Enantiopure Bridged Lactones and Fused Indenes

The chiral triazole carbene and Ti(OPr-i)4 cocatalyzed reaction between α,β-unsaturated aldehydes and 2-(aroylvinyl)benzaldehydes was systematically studied. A divergence in reaction pathways was observed under different reaction conditions. In benzene solvent and at ambient temperature, the reaction produced 4,5-dihydro-1,4-methanobenzo[c]oxepin-3-ones, the bridged caprolactones, as the major products in moderate yields with excellent enantioselectivity. The same reaction in dichloroethane and at 50 °C, however, gave 2,8-dihydrocyclopenta[a]indenes as the major products in most cases. The application of the method developed was demonstrated by the transformation of the bridged lactone products into enantiopure 4-hydroxy-1,2,3,4-tetrahydronaphthalene-2-carboxylic acids.