376949

Sigma-Aldrich

Phosphorus(V) oxybromide

>95%

Synonym(s):
Phosphorus oxide bromide, Phosphoryl bromide
Linear Formula:
POBr3
CAS Number:
Molecular Weight:
286.69
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.22
Pricing and availability is not currently available.

Quality Level

assay

>95%

bp

192 °C (lit.)

mp

56 °C (lit.)

density

2.82 g/mL at 25 °C (lit.)

storage temp.

2-8°C

SMILES string

BrP(Br)(Br)=O

InChI

1S/Br3OP/c1-5(2,3)4

InChI key

UXCDUFKZSUBXGM-UHFFFAOYSA-N

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General description

Reaction of phosphorus pentabromide with phosphorus pentoxide at elevated temperatures affords phosphorus(V) oxybromide. Its Raman spectrum has been studied and the molecule has been reported to exhibit point group symmetry C3v. Phosphorus(V) oxybromide (Phosphorus oxide bromide) participates in the preparation of 1:1 addition ionic compound having melting point at 154·0°C, via reaction with gallium tribromide. This ionic compound contains non-metal cation POBr2+.

Application

Phosphorus(V) oxybromide may be used as brominating reagent in the synthesis of 2,4,6-tribromopyrimidine. It may be used in the preparation of bromoheterocyclic compounds.

Packaging

25 g in glass bottle

Pictograms

Corrosion

Signal Word

Danger

Hazard Statements

Supp Hazards

EUH014

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

Hazard Codes

C

Risk Statement

14-34

Safety Statement

26-36/37/39-45

RIDADR

UN 1939 8 / PGII

WGK Germany

WGK 3

A facile halogenation of some hydroxyheterocycles using triphenylphosphine and N-halosuccinimide.
Sugimoto O, et al.
Tetrahedron Letters, 40(42), 7477-7478 (1999)
The Raman spectrum and the molecular structure of phosphorus oxybromide.
Gerding H and van Driel M.
Rec. Trav. Chim., 61(6), 419-424 (1942)
Phosphorus oxybromide as a brominating agent; bromopyrimidines.
D R V GOLDING et al.
The Journal of organic chemistry, 12(2), 293-293 (1947-03-01)
The possible existence of the cation POBr2+ and some properties of phosphorus oxybromide, gallium tribromide, and their ionic 1: 1 addition compound.
Greenwood NN and Worrall IJ.
J. Inorg. Nucl. Chem., 6(1), 34-41 (1958)
90. The heats of hydrolysis of some halides and oxyhalides of phosphorus.
Charnley T and Skinner HA.
Journal of the Chemical Society, 450-452 (1953)

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