A practical and regioselective direct N-alkylation of 2-pyridones is enabled by use of α-keto esters in the P(NMe2)3-mediated deoxygenation process. The reaction proceeds under mild conditions to produce N-alkylated 2-pyridones with high selectivity and generality, and the protocol is shown to be applicable for the scale-up synthesis, which makes it promising for practical applications.
通过在P(NMe 2 ) 3介导的脱氧过程中使用α-
酮酯,可以实现2-
吡啶酮的实用且区域选择性的直接N-烷基化。该反应在温和的条件下进行,具有高选择性和通用性,可生成N-烷基化2-
吡啶酮,并且该方案适用于放大合成,这使其具有实际应用前景。