214-91-5

Basic information

• Product Name: benzo[h]pentaphene
• Synonyms: Benzo(a)naphth(2,3-c)anthracene; Benzo(h)pentaphene; Benzo[h]pentaphene
• CAS NO: 214-91-5
• Molecular Formula: C₂₆H₁₆
• Molecular Weight: 328.4052
• Mol File: 214-91-5.mol
• Article Data: 1

Chemical Properties

• Melting Point: 250-251 °C
• Boiling Point: 604.1°C at 760 mmHg
• Flash Point: 314.6°C
• Density: 1.263g/cm³
• Vapor Pressure: 6.64E-14mmHg at 25°C
• Refractive Index: 1.842
• CAS DataBase Reference: benzo[h]pentaphene(CAS DataBase Reference)
• NIST Chemistry Reference: benzo[h]pentaphene(214-91-5)
• EPA Substance Registry System: benzo[h]pentaphene(214-91-5)

Safety Data

• Hazardous Substances Data: 214-91-5(Hazardous Substances Data)

Upstream product

• 125663-74-3 [2,2'-binaphthalene]-3,3'-diol 
• 100-58-3 phenylmagnesium bromide 
• 242-51-3 dinaphtho[2,3-b:2′,3′-d]furan 
• 192-47-2 1.2,4.5,8.9-tribenzopyrene 
• 101955-72-0 benzo[h]pentaphene-5,10,15,16-tetraone 
• 101763-90-0 o-Toluoyl-tetraphen 

Relevant articles and documents

Aromatic Metamorphosis of Dibenzofurans into Triphenylenes Starting with Nickel-Catalyzed Ring-Opening C-O Arylation

A new class of aromatic metamorphosis has been developed in which dibenzofurans were converted into triphenylenes. This transformation is composed of three successive operations: (1) nickel-catalyzed ring-opening C-O bond arylation with arylmagnesium bromides, (2) trifluoromethanesulfonylation (triflation) of the resulting hydroxy moiety with Tf2O, and (3) palladium-catalyzed or photoinduced ring closure. In the last ring-closing step, the photoinduced process has proven to be more productive than the palladium-catalyzed one. By employing π-extended dinaphthofuran as the substrate, dorsally benzo-fused [5]helicene was obtained in a satisfactory yield.