An Enantiocontrolled Approach for the Synthesis of Chiral 3,5-Disubstituted 2(1H)-pyridinones
作者:David R. Williams、David C. Kammler、William R. F. Goundry
DOI:10.3987/com-05-s(t)70
日期:——
for the convergent synthesis of chiral, nonracemic 5-substituted 3-acyl-2(1H)-pyridinones is reported. Claisen rearrangement provides direct access to the α-branched 2-[4-(tert-butyldimethylsilanoxy)cyclohex-2-enyl]-3-hydroxypropionaldehyde as a key intermediate. The application of mild oxidation conditions facilitates the preparation of a series of 3,5-disubstituted 2(1H)-pyridinones.
报道了手性非外消旋 5-取代 3-酰基-2(1H)-吡啶酮的聚合合成的对映选择性路线。Claisen 重排提供了直接获得 α-支链 2-[4-(叔丁基二甲基硅烷氧基)环己-2-烯基]-3-羟基丙醛作为关键中间体的途径。温和氧化条件的应用促进了一系列 3,5-二取代 2(1H)-吡啶酮的制备。