2-pyrone-3-carboxamides (1) with a good yield at room temperature. The notable feature of this reaction is the promotion of amidate ion formation mediated by NaH to initiate intramolecular ring transformation. In addition to ring transformation, simultaneous decarboxylation and substitution under the metal-free condition in one pot have been achieved to yield N-substituted 2-pyridones (3) from 1.
在此,我们报告了一种新的且具有成本效益的方法,用于从2-
吡喃酮-3-甲酰胺 ( 1 ) 合成N-取代的2-
吡啶酮-3-
羧酸 ( 2 ),在室温下具有良好的产率。该反应的显着特点是促进 NaH 介导的酰胺离子形成,从而引发分子内环转化。除了环化之外,还实现了在无
金属条件下一锅同时脱羧和取代,从1得到N-取代的2-
吡啶酮( 3 ) 。