"naphthol." YourDictionary, n.d. Web. 12 October 2018. <http://www.yourdictionary.com/naphthol>.
naphthol. (n.d.). Retrieved October 12th, 2018, from http://www.yourdictionary.com/naphthol
A hydroxy derivative of naphthalene, C10H8O, occurring in two isomeric forms: alpha-naphthol, used in making dyes and perfumes, and beta-naphthol, used in making antioxidants, pigments, dyes, and pharmaceuticals.
Hinsberg, Ann., 1887, 2 37, p. 340); by the oxidation of an ortho-diamine in the presence of a-naphthol (0.
If s-naphthylamine and 0-naphthol be reduced, tetrahydro products are obtained in which the aminoor oxy-bearing half of the molecule becomes aliphatic in character.
If a-naphthylamine and a-naphthol be reduced, the hydrogen atoms attach themselves to the non-substituted half of the molecule, and the compounds so obtained resemble aminodiethylbenzene, C 6 H 3 NH 2 (C 2 H 5) 21 and oxydiethylbenzene, C 6 H 3.
0-Naphthylamine is prepared by heating 13-naphthol with zinc chloride-ammonia to 200-210° (V.
Weith, Ber., 1880, 13, 1300); or in the form of its acetyl derivative by heating /3-naphthol with ammonium acetate to 270-280° C. It forms odourless, colourless plates which melt at 111-112° C. It gives no colour with ferric chloride.