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
由吡喃酮前体合成各种取代的苯酚,即4 H-吡喃-4-酮,3-(苄氧基)-2-甲基-4 H-吡喃-4-酮(苄基-麦芽酚),2,6-二甲基-给出了4 H-吡喃-4-酮和4-氧代-4 H-吡喃-2,6-二羧酸二乙酯(螯合二乙二酸二乙酯)。使用常规加热方法和微波条件,将多种原核生物与叔丁醇作为溶剂和叔丁醇钾作为碱结合使用。