An Efficient Synthesis of Azetidine-2,3-diones from <scp>l</scp>-(+)-Diethyl Tartrate
作者:Abdul Deshmukh、Pinak Chincholkar、Vedavati Puranik
DOI:10.1055/s-2007-985563
日期:——
A convenient route to enantiopure azetidine-2,3-diones is described. The chiral ketene generated from commercially available L-(+)-diethyl tartrate on Staudinger cycloaddition with different imines gave spiro-P-lactams in good yields. These spiro-p-lactams were transformed into azetidine-2,3-diones in excellent yields in a two-step process.
描述了一种获得对映体纯氮杂环丁烷-2,3-二酮的便捷途径。从市售的 L-(+)-酒石酸二乙酯与不同的亚胺通过施陶丁格环加成反应生成的手性烯酮以良好的收率得到螺-P-内酰胺。这些螺-p-内酰胺在两步过程中以极好的收率转化为氮杂环丁烷-2,3-二酮。