Merck
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78181

Sigma-Aldrich

Phenylboronic acid

purum, ≥97.0% (HPLC)

Synonym(s):
Benzeneboronic acid, Dihydroxyphenylborane, NSC 66487, Phenyl-boric acid, Phenylboric acid, Phenyldihydroxyborane
Linear Formula:
C6H5B(OH)2
CAS Number:
Molecular Weight:
121.93
Beilstein:
970972
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.22

grade

purum

Quality Level

assay

≥97.0% (HPLC)

form

crystals

mp

216-219 °C (lit.)
218-222 °C

SMILES string

OB(O)c1ccccc1

InChI

1S/C6H7BO2/c8-7(9)6-4-2-1-3-5-6/h1-5,8-9H

InChI key

HXITXNWTGFUOAU-UHFFFAOYSA-N

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General description

Phenylboronic acid (PBA) is an organoboronic acid. It behaves as a molecular receptor that can attach to compounds containing cis-diol group. Microwave-assisted Suzuki coupling of aryl chlorides with phenylboronic acid in the presence of Pd/C (catalyst) and water (solvent) has been described. Palladium-catalyzed cross-coupling reaction of phenylboronicacid with haloarenes to afford biaryls has been reported.

Application

Phenylboronic acid may be employed in the following reactions:
  • Rhodium-catalyzed intramolecular amination.
  • Pd-catalyzed direct arylation.
  • Mizoroki-Heck and Suzuki-Miyaura coupling reactions catalyzed by palladium nanoparticles.
  • Palladium-catalyzed stereoselective Heck-type reaction.
  • Highly effective Palladium-catalyzed arylation Suzuki-Miyaura cross-coupling in water.

Phenylboronic acid may be employed as reagent in the preparation of:
  • Ni(II) pincer complex and Pd(II) pyridoxal hydrazone metallacycles as catalysts for the Suzuki-Miyaura cross-coupling reactions.
  • N-type polymers for all-polymer solar cells.
  • Novel series of potent and selective mTOR kinase inhibitors.
  • Inhibitors of lactate dehydrogenase against cancer cell proliferation.

Packaging

1 g in glass bottle
10 g in poly bottle
50 g in glass bottle

Other Notes

Contains varying amounts of phenylboronic anhydride

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Precautionary Statements

Hazard Classifications

Acute Tox. 4 Oral

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

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Certificate of Origin

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