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T84603

Sigma-Aldrich

Triphenylphosphine oxide

98%

Synonym(s):

Ph3PO, TPPO, Triphenyl phosphorus oxide, Triphenylphosphine monoxide

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About This Item

Linear Formula:
(C6H5)3PO
CAS Number:
791-28-6
Molecular Weight:
278.28
Beilstein/REAXYS Number:
745854
EC Number:
212-338-8
MDL number:
MFCD00002080
UNSPSC Code:
12352002
PubChem Substance ID:
24900532
NACRES:
NA.22

assay

98%

reaction suitability

reagent type: ligand
reaction type: Coupling Reactions
reagent type: ligand
reaction type: Epoxidations
reagent type: ligand
reaction type: Michael Reaction

mp

150-157 °C (lit.)

functional group

phosphine oxide

SMILES string

O=P(c1ccccc1)(c2ccccc2)c3ccccc3

InChI

1S/C18H15OP/c19-20(16-10-4-1-5-11-16,17-12-6-2-7-13-17)18-14-8-3-9-15-18/h1-15H

InChI key

FIQMHBFVRAXMOP-UHFFFAOYSA-N

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Application

Triphenylphosphine oxide can be used:
  • As a catalyst in Appel-type chlorination reaction of acyclic primary and secondary alcohols.
  • As a catalyst in stereoselective poly and dibromination of α,β-unsaturated esters and β,γ-unsaturated α-ketoester compounds.
  • As a promotor in the diastereoselective synthesis of α-ribofuranosides through ribofuranosylation of alcohols with ribofuranosyl iodides.

pictograms

Exclamation mark
GHS07

signalword

Warning

hcodes

H302,H412

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Chronic 3

Storage Class

11 - Combustible Solids

wgk_germany

WGK 2

flash_point_f

356.0 °F

flash_point_c

180 °C

ppe

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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Phosphine oxide-catalysed chlorination reactions of alcohols under Appel conditions
Denton RM, et al.
Chemical Communications (Cambridge, England), 46(17), 3025-3027 (2010)
Triphenylphosphine oxide-catalyzed stereoselective poly-and dibromination of unsaturated compounds
Yu T, et al.
Chemical Communications (Cambridge, England), 50(58), 7817-7820 (2014)
?-Selective Ribofuranosylation of Alcohols with Ribofuranosyl Iodides and Triphenylphosphine Oxide
Oka N, et al.
The Journal of Organic Chemistry, 79(16), 7656-7664 (2014)
Ya-Kun Wang et al.
Nature communications, 11(1), 3674-3674 (2020-07-24)
Metal halide perovskites have emerged as promising candidates for solution-processed blue light-emitting diodes (LEDs). However, halide phase segregation - and the resultant spectral shift - at LED operating voltages hinders their application. Here we report true-blue LEDs employing quasi-two-dimensional cesium
Li Na Quan et al.
Nature communications, 11(1), 170-170 (2020-01-12)
Reduced-dimensional perovskites are attractive light-emitting materials due to their efficient luminescence, color purity, tunable bandgap, and structural diversity. A major limitation in perovskite light-emitting diodes is their limited operational stability. Here we demonstrate that rapid photodegradation arises from edge-initiated photooxidation
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