376949

Phosphorus(V) oxybromide

>95%

• Synonym(s): Phosphorus oxide bromide, Phosphoryl bromide
• Linear Formula: POBr₃
• CAS Number: 7789-59-5
• Molecular Weight: 286.69
• EC Number: 232-177-7
• MDL number: MFCD00036298
• UNSPSC Code: 12352100
• PubChem Substance ID: 24863480
• NACRES: NA.22

Properties

• Quality Level: 200
• 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

Description

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 C_3v.[1] 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⁺.[2]

Application

Phosphorus(V) oxybromide may be used as brominating reagent in the synthesis of 2,4,6-tribromopyrimidine.[3] It may be used in the preparation of bromoheterocyclic compounds.[4]

Safety Information

• Pictograms: GHS05
• Signal Word: Danger
• Hazard Statements: H314
• Precautionary Statements: P260 - P280 - P303 + P361 + P353 - P305 + P351 + P338 + P310
• Hazard Classifications: Eye Dam. 1 - Skin Corr. 1B
• Supplementary Hazards: EUH014
• Storage Class Code: 8A - Combustible corrosive hazardous materials
• WGK: WGK 3
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves