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288462

Sigma-Aldrich

Phosphorus tribromide

≥99.99% trace metals basis

Synonym(s):

Phosphorus(III) bromide

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About This Item

Linear Formula:
PBr3
CAS Number:
7789-60-8
Molecular Weight:
270.69
EC Number:
232-178-2
MDL number:
MFCD00011436
UNSPSC Code:
12352300
PubChem Substance ID:
24857341
NACRES:
NA.23

vapor pressure

0.27 psi ( 54 °C)

Assay

≥99.99% trace metals basis

form

liquid

refractive index

n20/D 1.697 (lit.)

bp

175 °C (lit.)

mp

−41.5 °C (lit.)

density

2.88 g/mL at 20 °C (lit.)

SMILES string

BrP(Br)Br

InChI

1S/Br3P/c1-4(2)3

InChI key

IPNPIHIZVLFAFP-UHFFFAOYSA-N

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General description

Phosphorus tribromide (PBr3) is a phosphorus halide that can be used as a reactive phosphorylating agent for the formation of multifunctional thiophenes.

Application

PBr3 can be used as an acceptor molecule in the formation of donor-acceptor complexes. It can also be used in the phosphorylation of arylphospholes which can further be utilized in the synthesis of phosphonic amides.

accessory

Product No.
Description
Pricing

Pictograms

CorrosionExclamation mark
GHS05,GHS07

Signal Word

Danger

Hazard Statements

H314,H335

Hazard Classifications

Eye Dam. 1 - Skin Corr. 1B - STOT SE 3

Target Organs

Respiratory system

Supplementary Hazards

EUH014

Storage Class Code

8A - Combustible corrosive hazardous materials

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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Donor-acceptor complexes between organoamines and phosphorus tribromide
Muller G, et al.
Zeitschrift fur Naturforschung B, 56(11), 1163-1171 (2001)
Site-selective phosphorylation of arylphospholes through reaction with phosphorus tribromide
Keglevich G, et al.
Journal of Organometallic Chemistry, 643(11), 32-38 (2002)
Phosphorylation of 2-(3-methyl-1, 3-diazabuten-1-yl)-3-ethoxycarbonylthiophenes with phosphorus (III) halides
Pinchuk AM, et al.
Heteroatom Chem., 12(7), 641-651 (2001)
Andrey S Mereshchenko et al.
Nature chemistry, 7(7), 562-568 (2015-06-24)
'Roaming' is a new and unusual class of reaction mechanism that has recently been discovered in unimolecular dissociation reactions of isolated molecules in the gas phase. It is characterized by frustrated bond cleavage, after which the two incipient fragments 'roam'

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