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Sigma-Aldrich

6-Cyano-2-naphthol

97%

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Synonym(s):
2-Cyano-6-hydroxynaphthalene, 2-Cyano-6-naphthol, 2-Hydroxy-6-naphthonitrile, 6-Cyano-2-hydroxynaphthalene, 6-Hydroxy-2-naphthalenecarbonitrile, 6-Hydroxy-2-naphthonitrile
Linear Formula:
NCC10H6OH
CAS Number:
Molecular Weight:
169.18
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22

Quality Level

Assay

97%

mp

165.5-170.5 °C (lit.)

SMILES string

Oc1ccc2cc(ccc2c1)C#N

InChI

1S/C11H7NO/c12-7-8-1-2-10-6-11(13)4-3-9(10)5-8/h1-6,13H

InChI key

WKTNIBWKHNIPQR-UHFFFAOYSA-N

General description

6-Cyano-2-naphthol (6CN2) is an aromatic alcohol that can be synthesized from 6-bromo-2-naphthol. It is a superphotoacid with the ground state pKa* value of 8.4 and excited state pKavalue of 0.2, respectively. 6CN2 protonates PANI-ES (polyaniline emeraldine salt) to form PANI-EB (emeraldine base), which shows enhanced conductivity. The proton-transfer kinetics and photophysical behavior of 6CN2 have been investigated.

Application

6-Cyano-2-naphthol (6-Hydroxy-2-naphthonitrile, 2-cyano-6-naphthol) may be used in the preparation of:
  • 5-bromo-6-hydroxy-2-naphthonitrile
  • 5,7-dibromo-6-hydroxy-2-naphthonitrile
  • 5-chloro-6-hydroxy-2-naphthonitrile
  • 6-(2-imidazolyl)-2-naphthol
  • dodecaethylene glycol di-6-cyano-2-naphthyl ether
  • 6-cyano-2-naphthyl trifluoremethanesufonate
  • 2-(6-cyano-naphthyl)2,3,4-tri-O-acetyl-β-D-xylopyranoside
  • 1,5-bis(7-amidino-2-naphthalenoxy)-3-oxapentane dihydrochloride

Reactant for:
  • Palladium-catalyzed reduction
  • Nickel-catalyzed cross-coupling reactions
  • Palladium-catalyzed Heck reactions

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

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

Target Organs

Respiratory system

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

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Anna Siegbahn et al.
Organic & biomolecular chemistry, 13(11), 3351-3362 (2015-02-07)
Proteoglycans (PGs) are macromolecules that consist of long linear polysaccharides, glycosaminoglycan (GAG) chains, covalently attached to a core protein by the carbohydrate xylose. The biosynthesis of GAG chains is initiated by xylosylation of the core protein followed by galactosylation by
Doping of Polyaniline with 6-Cyano-2-naphthol.
Das D, et al.
The Journal of Physical Chemistry B, 118(45), 12993-13001 (2014)
Ultrafast excited-state proton transfer from cyano-substituted 2-naphthols.
The Journal of Physical Chemistry A, 101(25), 4602-4605 (1997)
Maryam Rahimian et al.
Biochemistry, 48(7), 1573-1583 (2009-01-29)
Most A/T specific heterocyclic diamidine derivatives need at least four A/T base pairs for tight binding to the DNA minor groove. Addition of a GC base pair to A/T sequences typically causes a large decrease in binding constant. The ability
ssDNA templated assembly of oligonucleotides and bivalent naphthalene guests.
Janssen PGA, et al.
Soft Matter, 6(7), 1494-1502 (2010)

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