192-28-9

Basic information

• Product Name: Benz[a]acephenanthrylene
• CAS NO: 192-28-9
• Molecular Formula: C20H12
• Molecular Weight: 252.315
• Mol File: 192-28-9.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: Benz[a]acephenanthrylene(CAS DataBase Reference)
• NIST Chemistry Reference: Benz[a]acephenanthrylene(192-28-9)
• EPA Substance Registry System: Benz[a]acephenanthrylene(192-28-9)

Safety Data

• Hazardous Substances Data: 192-28-9(Hazardous Substances Data)

Upstream product

• 1714-20-1 1,10-diphenylanthracene 
• 602-55-1 9-phenylanthracene 

Downstream Products

• 294172-74-0 C₃₅H₁₈Br₂O 

Relevant articles and documents

Probing mechanisms of aryl-aryl bond cleavages under flash vacuum pyrolysis conditions

Several biaryls have been subjected to flash vacuum pyrolysis (FVP) at 1100°C and 0.8-0.9hPa. Product compositions are reported for the FVP of 9-phenylanthracene (1), 2-bromobiphenyl (5), biphenyl (8), 1,10- diphenylanthracene (12), 9-(2-naphthyl)anthracene (17), and 9,9′- bianthracenyl (20). The experimental results have been used to evaluate four possible mechanistic pathways for the cleavage of aryl-aryl bonds under these conditions: (1) the 'explosion' of substituted phenyl radicals; (2) hydrogen atom attachment to an ipso-carbon atom of the biaryl followed by C-C bond cleavage; (3) direct homolysis; and (4) loss of a fragment as an aryne. None of these mechanisms by itself successfully accommodates all of the experimental facts. The data suggest that aryl-aryl bond cleavages under FVP conditions involve at least two different mechanistic pathways and that the relative contributions of the competing pathways probably vary from one biaryl to the next.