66537-67-5

Basic information

• Product Name: (erythro/erythro)-1,2,3-triphenyltriphosphane
• CAS NO: 66537-67-5
• Molecular Weight: 326.254
• Mol File: 66537-67-5.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: (erythro/erythro)-1,2,3-triphenyltriphosphane(CAS DataBase Reference)
• NIST Chemistry Reference: (erythro/erythro)-1,2,3-triphenyltriphosphane(66537-67-5)
• EPA Substance Registry System: (erythro/erythro)-1,2,3-triphenyltriphosphane(66537-67-5)

Safety Data

• Hazardous Substances Data: 66537-67-5(Hazardous Substances Data)

Upstream product

• 60859-71-4 1,2,3-triphenyl-1,3-bis(trimethylsilyl)-triphosphane 
• 1073-47-8 phenyldibromophosphine 

Downstream Products

• 34478-62-1 1,2-diphenyldiphosphane 
• 638-21-1 phenylphosphane 
• 3376-52-1 pentaphenylcyclopentaphosphane 

Relevant articles and documents

BEITRAEGE ZUR CHEMIE DES PHOSPHORS 90. 1,2,3-TRIPHENYLTRIPHOSPHAN

The title compound 1 is formed as the main product of alcoholysis of 1,2,3-triphenyl-1,3-bis(trimethylsilyl)-triphosphane, (Me3Si)2(PPh)3.The triphosphane is relatively stable in solution below -30 grad C.At room temperature, 1 disproportionates yielding PhPH2, H2(PPh)2 and (PPh)5.These rearrangements take place via a four-membered transition state preferentially involving P-P bonds.In solution 1 forms the three diastereomers 1a(threo/threo), 1b(threo/erythro), and 1c(erythro/erythro) in a ratio of about 3:4:1.Their correlation to the 31P NMR spectroscopically observed spin systems results from the dependence of the 1JP-P-coupling constants on dihedral angles and from the ratio of the isomers immediately after the stereospecific solvolysis.