50777-45-2

Basic information

• Product Name: Phosphine oxide, tris(4-ethylphenyl)-
• CAS NO: 50777-45-2
• Molecular Formula: C24H27OP
• Molecular Weight: 362.452
• Mol File: 50777-45-2.mol

Chemical Properties

• CAS DataBase Reference: Phosphine oxide, tris(4-ethylphenyl)-(CAS DataBase Reference)
• NIST Chemistry Reference: Phosphine oxide, tris(4-ethylphenyl)-(50777-45-2)
• EPA Substance Registry System: Phosphine oxide, tris(4-ethylphenyl)-(50777-45-2)

Safety Data

• Hazardous Substances Data: 50777-45-2(Hazardous Substances Data)

Upstream product

• 50777-22-5 tris(p-ethylphenyl)phosphine 
• 1585-07-5 1-bromo-4-ethylbenzene 

Relevant articles and documents

Photooxidation of triarylphosphines under aerobic conditions in the presence of a gold(iii) complex on cellulose extracted from Carthamus tinctorius immobilized on nanofibrous phosphosilicate

Triarylphosphines were converted to the corresponding oxides via photooxidation as a novel method. In this study, cellulose was extracted from the Carthamus tinctorius plant and then oxidized by sodium metaperiodate. A gold complex was supported on this natural cellulose. Then, a gold complex on natural cellulose supported on FPS (FPS/Au(iii)) was synthesized for the reduction of phosphine oxides to corresponding phosphines with remarkable chemoselectivity. The morphology of FPS led to higher catalytic activity. FPS/Au(iii) NPs were thoroughly characterized using TEM, FESEM, FTIR, TGA, and BET.

Eosin Y-catalyzed photooxidation of triarylphosphines under visible light irradiation and aerobic conditions

We report herein a novel method for Eosin Y-catalyzed photooxidation of triarylphosphines under visible light irradiation and aerobic conditions. This new approach employed visible light as the energy source and air as the oxidant, showing great advantages in environmental benignness and operational easiness with a wide functional group tolerance.

Preparation and Properties of Tertiary p-Alkylarylphosphines containing Straight-chain Alkyl Groups

A series of tris(p-alkylaryl)phosphines with straight-chain alkyl groups, P(p-C6H4-CnH2n+1)3 where n=2-9, have been prepared by reaction of phosphorus trichloride with the Grignard reagent derived from the corresponding p-bromoalkylbenzene.When n=2 and 3 the phosphines are crystalline solids, but for n>3 they are viscous oils up to n=9, which is a waxy solid.The phosphines have been characterised by microanalysis, and i.r., 1H and 31P n.m.r., and mass spectrometry.The p-substituted-arylphosphines are more sensitive than triphenylphosphine to air; aerial oxidation converts them exclusively into the corresponding phosphine oxides, in contrast to trialkylphosphines which are oxidised to a complex mixture of products.The complexing ability of the new phosphines (PAr3) is demonstrated by their ready displacement of 1,5-cyclo-octadiene (cod) from (M=Pd and Pt) to yield trans- and cis-, respectively.