1-Naphthol → 2-Naphthol

Participants

Reaction Steps

4.80 g of (+)-tartaric acid diamide (VI) and 1.44 g of naphthol (α:β=1 : 1) were dissolved in 10 ml of methanol by heating, and the thus-obtained solution was allowed to stand for 12 hours at room temperature, with 2.3 g of a clathrate compound (colorless needle-like crystal, mp. 199-204° C.) containing tartaric acid diamide (VI) and 8 -naphthol in a ratio of 1 : 1 being crystallized. When the tartaric acid diamide (VI) was separated from the clathrate compound by column chromatography, 0.53 g of β-naphthol was obtained. (Function and Effect of the Invention)

Provenance & Evidence