Synthesis of 6-Substituted-4-Hydroxy-2-pyridinones via Intramolecular Ketene Trapping of Functionalized Enamine-Dioxinones
作者:Bhavesh H. Patel、Andrew M. Mason、Anthony G. M. Barrett
DOI:10.1021/ol202028t
日期:2011.10.7
The synthesis of various 6-substituted-4-hydroxy-2-pyridinones is reported. The functionalized keto-dioxinones were constructed via a diethylzinc mediated crossed Claisen condensation reaction and subsequent enamine formation, thermolysis, and cyclization–aromatization providing the pyridinone unit.
报道了各种6-取代的-4-羟基-2-吡啶酮的合成。通过二乙基锌介导的交叉克莱森缩合反应和随后的烯胺形成,热解和环化芳香化反应构建了功能化的酮二恶酮,从而提供了吡啶酮单元。