376949
Phosphorus(V) oxybromide
>95%
Synonym(s):
Phosphorus oxide bromide, Phosphoryl bromide
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About This Item
Linear Formula:
POBr3
CAS Number:
Molecular Weight:
286.69
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22
Quality Level
assay
>95%
form
solid
bp
192 °C (lit.)
mp
56 °C (lit.)
density
2.82 g/mL at 25 °C (lit.)
functional group
phosphine oxide
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.
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Danger
hcodes
Hazard Classifications
Eye Dam. 1 - Skin Corr. 1B
supp_hazards
Storage Class
8A - Combustible corrosive hazardous materials
wgk_germany
WGK 3
ppe
Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges
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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)
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)
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)
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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