4141-67-7

Basic information

• Product Name: pentaethylpentaphospholane
• Synonyms: Pentaphospholane, pentaethyl-
• CAS NO: 4141-67-7
• Molecular Formula: C₁₀H₂₅P₅
• Molecular Weight: 300.1743
• Mol File: 4141-67-7.mol
• Article Data: 3

Chemical Properties

• Boiling Point: 327.5°C at 760 mmHg
• Flash Point: 158.9°C
• Vapor Pressure: 0.000384mmHg at 25°C
• CAS DataBase Reference: pentaethylpentaphospholane(CAS DataBase Reference)
• NIST Chemistry Reference: pentaethylpentaphospholane(4141-67-7)
• EPA Substance Registry System: pentaethylpentaphospholane(4141-67-7)

Safety Data

• Hazardous Substances Data: 4141-67-7(Hazardous Substances Data)

Upstream product

• 1498-40-4 dichlorophosphinoethane 
• 205433-89-2 [α-(ethylphosphanyl)benzylidene]triphenylphosphorane 

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.

Evidence for Surface Phosphinidene Intermediates Mg> in the Heterogeneous Dechlorination of Alkyldichlorophosphanes RPCl2 by Mg Metal

The heterogeneous dechlorination of alkyldichlorophosphanes by Mg metal at 600 K yields chemisorbed products which include penta-alkylcyclopentaphosphanes (RP)5, in addition to RnPH(3-n), R2P-PR2, P4, RH, and R-R, and thus provides evidence for surface phosphinidene intermediates Mg>.