A one-pot oxidative cross-dehydrogenative [2 + 3] annulation of α-amino ketones with α-keto esters at room temperature is reported. The protocol features copper/organo cooperative catalysis and provides densely functionalized pyrrolones in high yields. Subsequent reduction furnished multi-substituted pyrrolidinones which represent the core-structure of the natural product clausenamide, a lead molecule
据报道在室温下α-
氨基酮与α-
酮酸酯的一锅氧化交叉脱氢[2 + 3]环化反应。该协议具有
铜/有机协同催化功能,并以高收率提供了功能强大的
吡咯烷酮。随后的还原反应提供了多取代的
吡咯烷酮,其代表了
天然产物clathnamide的核心结构,后者是治疗阿尔茨海默氏病的先导分子。