6-Methoxy-alpha-tetralone → 6-Hydroxy-3,4-dihydro-1(2H)-naphthalenone

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Reaction Steps

A solution of 6-methoxy-1-tetralone (5.0 g) in 48% hydrobromic acid (62 ml) was refluxed for 8 hours. The mixture was cooled, filtered and washed with water (50 ml) to give 6-hydroxy-1-tetralone (3.91 g): NMR δ (d6DMSO) 1.9-2.05(m,2H), 2.4-2.55(m,2H), 2.8-2.9(m,2H), 6.65(d,1H), 6.7(dd,1H), 7.75(d,1H),; m/e 163(M+H)+.

Provenance & Evidence