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Triphenylphosphine oxide

Catalog No. A12455 Name Alfa Aesar
CAS Number 791-28-6 Website
M. F. C18H15OP Telephone
M. W. 278.284861 Fax
Purity 99% Email
Storage Chembase ID: 79290

SYNONYMS

Title
三苯基氧膦
IUPAC name
(diphenylphosphoroso)benzene
IUPAC Traditional name
triphenylphosphine oxide

DATABASE IDS

Beilstein Number 745854
MDL Number MFCD00002080
CAS Number 791-28-6
EC Number 212-338-8

PROPERTIES

Purity 99%
Boiling Point 360°C
Density 1.200
Flash Point 180°C(356°F)
Melting Point 153-159°C
GHS Pictograms GHS06
GHS Hazard statements H301-H402-H412
European Hazard Symbols X
GHS Precautionary statements P273-P264-P301+P310-P321-P405-P501A
Risk Statements 22-52/53
RTECS SZ1676000
Safety Statements 36-61
TSCA Listed

DETAILS

REFERENCES

  • The reagent prepared from a 2:1 molar ratio of the phosphine oxide and triflic anhydride is a useful dehydrating agent, e.g. for preparation of nitriles from amides or oximes, or of amides from acids and amines: J. Org. Chem., 52, 4137 (1987). In combination with triethylamine, the reagent also dehydrates activated ketones to alkynes: Synthesis, 217 (1989).