2-Naphthol

2-Naphthol, or β-naphthol, is a fluorescent colorless (or occasionally yellow) crystalline solid with the formula C10H7OH.

It is an isomer of 1-naphthol, differing by the location of the hydroxyl group on the naphthalene ring.

Both isomers are soluble in simple alcohols, ethers, and chloroform.

Some reactions of 2-naphthol are explicable with reference to its tautomerism, which produces a small amount of the keto tautomer.

2-Naphthol can be oxidatively coupled to form BINOL, a C2-symmetric ligand popularized for use in asymmetric catalysis.

NFPA 704 four-colored diamond Health 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g. chloroform Flammability 1: Must be pre-heated before ignition can occur. Flash point over 93 °C (200 °F). E.g. canola oil Instability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogen Special hazards (white): no code
Tautomeric equilibrium for beta-naphthol
Coupling of beta-naphthol using CuCl2
Coupling of beta-naphthol using CuCl2