Nitrosocarbonyl–Henry and Denitration Cascade: Synthesis of α-Ketoamides and α-Keto Oximes
作者:Mallu Kesava Reddy、Sumitava Mallik、Isai Ramakrishna、Mahiuddin Baidya
DOI:10.1021/acs.orglett.7b00482
日期:2017.4.7
Henry reaction of in situ generated nitrosocarbonyl intermediates and concomitant denitration cascade has been developed. The reaction is catalyzed by organic base at room temperature offering α-ketoamides, a demanding scaffold for drug discovery, in high yields. An alteration of substitution pattern also produced α-keto oximes, a high-value synthon. The protocol features operational simplicity and broad
原位生成的亚硝基羰基中间体和随之而来的反硝化级联反应已实现了前所未有的亨利反应。该反应在室温下被有机碱催化,以高收率提供了α-酮酰胺,这是药物发现所必需的支架。取代模式的改变也产生了α-酮肟,一种高价值的合成子。该协议具有操作简便和广泛的基材范围的特点。