2729-11-5

Basic information

• Product Name: Tris(pentafluorophenyl)phosphine oxide
• Synonyms: MLO-74-63;Tris(pentafluorophenyl)phosphine oxide
• CAS NO: 2729-11-5
• Molecular Formula: C₁₈F₁₅OP
• Molecular Weight: 0
• Mol File: 2729-11-5.mol
• Article Data: 6

Chemical Properties

• Boiling Point: 431.6°C at 760 mmHg
• Flash Point: 214.8°C
• Appearance: /
• Density: 1.8g/cm³
• Vapor Pressure: 2.98E-07mmHg at 25°C
• Refractive Index: 1.469
• CAS DataBase Reference: Tris(pentafluorophenyl)phosphine oxide(CAS DataBase Reference)
• NIST Chemistry Reference: Tris(pentafluorophenyl)phosphine oxide(2729-11-5)
• EPA Substance Registry System: Tris(pentafluorophenyl)phosphine oxide(2729-11-5)

Safety Data

• Hazardous Substances Data: 2729-11-5(Hazardous Substances Data)

Usage

InChI:InChI=1/C18F15OP/c19-1-4(22)10(28)16(11(29)5(1)23)35(34,17-12(30)6(24)2(20)7(25)13(17)31)18-14(32)8(26)3(21)9(27)15(18)33

Upstream product

• 22474-72-2 difluorotris(pentafluorphenyl)phosphorane 
• 5864-22-2 dichlorotris(pentafluorophenyl)phosphorane 
• 152385-10-9 methy(oxo)bis(η(2)-peroxo)rhenium(VII) 
• 1259-35-4 tris(pentafluorophenyl)phosphine 
• 7783-70-2 antimony pentafluoride 
• 5853-63-4 tris(2,4,6-trimethoxyphenyl)phosphine selenide 
• 2154-71-4 bis-trifluoromethyl-aminooxyl 

Downstream Products

• 1191255-62-5 Er[(C₆F₅)N₂C₃(CF₃)(O)(NO)]3(OP(C₆F₅)3) 
• 63108-04-3 C₁₂F₉(C₆F₅)2P 
• 363-72-4 Pentafluorobenzene 
• 5121-88-0 2,3,5,6,2′,3′,4′,5′,6′-nonafluorobiphenyl 
• 1259-35-4 tris(pentafluorophenyl)phosphine 

Relevant articles and documents

Electrophilic Phosphonium Cations as Lewis Acid Catalysts in Diels-Alder Reactions and Nazarov Cyclizations

The highly electrophilic fluorophosphonium cation [(C6F5)3PF]+[B(C6F5)4]- is shown to catalyze Diels-Alder reactions of challenging dienophile/enophile combinations an

A first methodical approach to salts with unsymmetrical fluorophenyl(pentafluorophenyl)difluoroiodonium(V) cations [Rf(R F)IF2]+ (Rf=x-FC6H 4, x=2, 3, 4; RF=C6F5)

A promising approach to the unknown type of [Ar′(Ar)IF2]X salts is offered. x-FC6H4IF4 (x=2, 3, 4) reacts with C6F5BF2 in CH2Cl2 and forms [x-FC6H4(C6F5)IF 2][BF4] salts in good yields. For [4-FC6H 4(C6F5)IF2][BF4] the fluoro-oxidizer property is shown in reactions with weakly reducing agents like E(C6F5)3 (E=P, As, Sb, Bi) and ArI (Ar=4-FC6H4, C6F5). The fluorine/aryl substitution method is also applied to the synthesis of [(4-FC6H4)2IF2][BF4], an example with two identical aryl groups in the difluoroiodonium(V) moiety.

Oxidations of ER3 (E = P, As, or Sb) by hydrogen peroxide. Methylrhenium trioxide as catalyst

Catalytic and noncatalytic conversions of tertiary phosphines to their oxides by hydrogen peroxide have been investigated. The catalyst is methylrhenium trioxide, CH3ReO3. The kinetics were investigated in acetonitrile-water (1:1 by volume) at 25°C. Stepwise interactions between CH3ReO3 and H2O2 form CH3Re(η2-O2)(O)2(OI2). A, and CH3Re(η2-O2)2(O)(OH2), B. In CH3CN-H2O (1:1 v/v) the equilibrium constants are K1 = 13 ± 2 L mol-1 and K2 = 136 ± 28 L mol-1 at pH 1.0 and 25°C. The forward and reverse rate constants for the formation of A in this medium are k1 = 32.5 ± 0.3 L mol-1 s-1 and k-1 - 3.0 ± 0.2 s-1. Systematic changes in the substituents on phosphorus were made to vary the nucleophilicity of the phosphine and its cone angles; the kinetic effects are discernible, although they lie in a narrow range. Triphenylarsine and triphenylstibine were also studied, and their rates are within a factor of 2 of that for PPh3. The rhenium peroxides A and B show a small difference in reactivity. The bimolecular reactions between A and most of the phosphines have rate constants of the order 105 L mol-1 s-1. The kinetic data support a mechanism that allows nucleophilic attack of the substrate at the rhenium peroxides.