The syntheses of various substituted phenols from pyranone precursors, namely 4H-pyran-4- one, 3-(benzyloxy)-2-methyl-4H-pyran-4-one (benzyl-maltol), 2, 6-dimethyl-4H-pyran-4-one and diethyl 4-oxo-4H-pyran-2, 6-dicarboxylate (diethyl chelidonate) are presented. A variety of pronucleophiles were used in combination with tert-butanol as solvent and potassium tert- butoxide as base, using conventional heating methods and microwave conditions.
