A convenient organocatalytic process for the chemoselective synthesis of substituted cyclohex-2-enones was developed. The cascade reaction involves a remarkable Michael addition of an acyclic ketone-based enamine onto unmodified enones. The enamine-mediated aldol–Robinson cascade reactions of aromatic and aliphatic aldehydes with acetone produced substituted cyclohex-2-enones in moderate to high yields under mild reaction conditions.
开发了一种用于取代环己-2-烯酮
化学选择性合成的便捷有机催化工艺。级联反应涉及无环酮基烯胺与未改性的烯酮发生显著的迈克尔加成反应。在温和的反应条件下,烯胺介导的芳族和脂肪族醛与
丙酮的醛缩-罗宾逊级联反应可产生取代环己-2-烯酮,产率中等至较高。