87274-61-1

Basic information

• Product Name: 3H-3-Benzophosphepin, 3-phenyl-
• Synonyms: 1-phenyl-1-benzphosphepin;3H-3-Benzophosphepin,3-phenyl
• CAS NO: 87274-61-1
• Molecular Formula: C16H13P
• Molecular Weight: 236.253
• Mol File: 87274-61-1.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: 3H-3-Benzophosphepin, 3-phenyl-(CAS DataBase Reference)
• NIST Chemistry Reference: 3H-3-Benzophosphepin, 3-phenyl-(87274-61-1)
• EPA Substance Registry System: 3H-3-Benzophosphepin, 3-phenyl-(87274-61-1)

Safety Data

• Hazardous Substances Data: 87274-61-1(Hazardous Substances Data)

Upstream product

• 21792-52-9 1,2-diethynylbenzene 
• 638-21-1 phenylphosphane 
• 87274-64-4 3-phenyl-3-benzophosphepine 3-oxide 
• 1034-49-7 (bromomethyl)triphenyl phosphonium bromide 
• 644-97-3 Dichlorophenylphosphine 
• 183181-22-8 (Z,Z)-o-bis(β-bromovinyl)benzene 

Downstream Products

• 91-20-3 naphthalene 
• 87274-64-4 3-phenyl-3-benzophosphepine 3-oxide 

Relevant articles and documents

A versatile route to 3-benzoheteroepines containing group 15 and 16 heavier elements involving several novel ring systems, and their thermal stabilities.

The C-unsubstituted 3-benzoheteroepines (2a-g) containing group 15 (P, As, Sb, and Bi) and group 16 (S, Se, and Te) heavier elements were prepared by the reaction of the corresponding metal reagents with (Z,Z)-o-bis(beta-lithiovinyl)benzene (5) which was derived in two steps from a common o-phthalaldehyde (3). The heteroepines (2) thus obtained were thermally labile towards heteroatom extrusion, and their half-lives on heating estimated from (1)H-NMR spectral analysis showed that the 3-benzoheteroepines (2) were far less stable than the corresponding 1-benzoheteroepines (1). The 2,4-bis(trimethylsilyl)-3-benzoheteroepines (17) containing Sb, Bi, and Te were also prepared from o-diiodobenzene (9) in 6 steps and were found to be more stable than the corresponding C-unsubstituted heteroepines (2).

3-PHENYL-3-BENZPHOSPHEPIN

By KOH/-crown-6 catalyzed addition of phenylphosphane to 1,2-diethynyl-benzene the title compound - which is the first phosphepine-derivative - is formed.