Title: 1-Naphthoic Acid
CAS Registry Number: 86-55-5
CAS Name: 1-Naphthalenecarboxylic acid
Additional Names: a-naphthoic acid
Molecular Formula: C11H8O2
Molecular Weight: 172.18
Percent Composition: C 76.73%, H 4.68%, O 18.58%
Literature References: Prepn from a-bromonaphthalene by Grignard reaction: Gilman et al., Org. Synth. coll. vol. II, 425 (1943); from 4-aminonaphthalenesulfonic acid by Sandmeyer reaction: Bassilios, Bull. Soc. Chim. Fr. 1950, 757; from b-nitronaphthalene by von Richter reaction: Bunnett, Rauhut, J. Org. Chem. 21, 934, 944 (1956); by oxidation of 1-methylnaphthalene: Aries, US 2930802 (1960); Barker, US 2963508 (1960 to Mid-Century).
Properties: Crystals from hot toluene, mp 160.5-162°. bp 300°. uv max (ethanol): 293 nm (log em 3.9). Slightly sol in hot water; freely sol in hot alcohol, ether.
Melting point: mp 160.5-162°
Boiling point: bp 300°
Absorption maximum: uv max (ethanol): 293 nm (log em 3.9)
CAUTION: Moderately irritating to skin, mucous membranes. |