3-Acyl-1, 2-naphthalenediols prepared by the photoinduced addition reaction of 1, 2- naphthoquinone with alkanals were oxidized with Fremy's salt to give 3-acyl-1, 2- naphthoquinones in good yields. The diols were reduced with amalgamated zinc, followed by oxidation to afford 3-alkyl-1, 2-naphthoquinones in moderate yields.
