205433-91-6

Basic information

• Product Name: [α-(phenylphosphanyl)benzylidene]triphenylphosphorane
• Synonyms: [α-(phenylphosphanyl)benzylidene]triphenylphosphorane
• CAS NO: 205433-91-6
• Molecular Weight: 460.495
• Mol File: 205433-91-6.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: [α-(phenylphosphanyl)benzylidene]triphenylphosphorane(CAS DataBase Reference)
• NIST Chemistry Reference: [α-(phenylphosphanyl)benzylidene]triphenylphosphorane(205433-91-6)
• EPA Substance Registry System: [α-(phenylphosphanyl)benzylidene]triphenylphosphorane(205433-91-6)

Safety Data

• Hazardous Substances Data: 205433-91-6(Hazardous Substances Data)

Downstream Products

• 40633-23-6 Triphenyl-cyclotriphosphan 
• 16721-45-2 triphenyl(phenylmethylene)phosphorane 
• 1100-88-5 benzyltriphenylphosphonium chloride 
• 638-21-1 phenylphosphane 
• 1104-52-5 tetraphenyl-cyclotetraphosphane 
• 3376-52-1 pentaphenylcyclopentaphosphane 

Relevant articles and documents

Ylidylphosphanes and -diphosphanes

Chlorophosphanyl and dichlorophosphanyl alkylidene- and benzylidenephosphoranes 6 and 8 are converted by reaction with LiAlH4 to the respective phosphanes 7 and 9. The former can be isolated, but decompose on heating or on protonation to give the ylidyl diphosphane 11 and the phosphonium ylide or phosphonium salt, respectively. The final products are the cyclooligophosphanes 15-17. Only the C-tert-butyl derivative 7c is stable in both regards. The conformation of the RPH group in 7 as compared to that of the RPCl group in 6 clearly reflects their different interaction with the ylide moiety.