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521418

Sigma-Aldrich

4-Cyanophenylboronic acid

≥95%

Synonym(s):

(p-Cyanophenyl)boronic acid, 4-Cyanobenzeneboronic acid, 4-Cyanophenylboric acid

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About This Item

Linear Formula:
NCC6H4B(OH)2
CAS Number:
Molecular Weight:
146.94
MDL number:
UNSPSC Code:
12352103
PubChem Substance ID:
NACRES:
NA.22

Quality Level

Assay

≥95%

mp

>350 °C (lit.)

SMILES string

OB(O)c1ccc(cc1)C#N

InChI

1S/C7H6BNO2/c9-5-6-1-3-7(4-2-6)8(10)11/h1-4,10-11H

InChI key

CEBAHYWORUOILU-UHFFFAOYSA-N

Application

4-Cyanophenylboronic acid can be used as a reactant in:
  • Palladium-catalyzed Suzuki-Miyaura cross-coupling in water.
  • Ruthenium catalyzed direct arylation of benzylic sp3 carbons of acyclic amines with arylboronates.
  • Ligand-free copper-catalyzed coupling of nitro arenes with arylboronic acids.
  • Ferric perchlorate-promoted reaction of fullerenes with various arylboronic acids to give fullerenyl boronic esters.
  • Phosphine-free Suzuki-Miyaura cross-coupling.
  • Palladacycles as effective catalysts for multicomponent reaction with allylpalladium-intermediates.
  • Chan-Lam-type Cu-catalyzed S-arylation of thiols.
  • Regioselective cross-coupling reactions under modfied Suzuki and Still cross-coupling reactions with copper catalysis.
  • Metal-free biaryl coupling reaction in the presence of dimethyl carbonate as a solvent.
  • Suzuki-type cross-coupling reaction with pentavalent triarylantimony diacetates in the absence of a base.

It can also be used to prepare:
  • Himbacine analogs as thrombin receptor antagonists and potential antiplatelet agents.
  • Trisulfonated calixarene upper-rim sulfonamido and their complexation with trimethyllysine epigenetic mark.
  • Antimalarial compounds via Suzuki cross-coupling.
  • Deoxyuridine derivatives.
Reactant involved in:
  • Oxidative hydroxylation
  • Trifluoromethylation
  • 1,4-Addition reactions

Precursor in the synthesis of inhibitors such as:
  • Tpl2 kinase inhibitors
  • P2X7 antagonists used in the treatment of pain

Other Notes

Contains varying amounts of anhydride

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

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

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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A mild and efficient new synthesis of aryl sulfones from boronic acids and sulfinic acid salts
Christian Beaulieu, et al.
Tetrahedron Letters, 45, 3233-3236 (2004)
Discovery of nor-seco himbacine analogs as thrombin receptor antagonists
Chelliah, M. V.; et al.
Bioorganic & Medicinal Chemistry, 22, 2544-2549 (2012)
Fa-Bao Li et al.
Organic letters, 14(7), 1800-1803 (2012-03-16)
Fullerenyl boronic esters have been prepared by a ferric perchlorate-promoted reaction of [60]fullerene with various arylboronic acids. The obtained fullerenyl boronic esters could undergo further functionalization with diols to afford C(60)-fused dioxane/dioxepane derivatives. A possible reaction mechanism for the formation
Hua-Jian Xu et al.
The Journal of organic chemistry, 77(6), 2878-2884 (2012-02-22)
In this work, an efficient CuSO(4)-catalyzed S-arylation of thiols with aryl and heteroaryl boronic acids at room temperature is established. This catalytic system can tolerate a wide variety of thiols and arylboronic acids in the presence of only 5 mol
Suzuki-type cross-coupling reaction of pentavalent triarylantimony diacetates with arylboronic acids without a base
Shuji Yasuike, et al.
Tetrahedron Letters, 48, 721-724 (2007)

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