10th international symposium on the synthesis and applications of isotopes and isotopically labelled compounds - poster presentations Session 19, Sunday, June 14 to Thursday, June 18, 2009
The synthesis of substituted phenols from pyranone precursors
作者:Laura J. Marshall、Karl M. Cable、Nigel P. Botting
DOI:10.1016/j.tet.2009.07.083
日期:2009.9
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