Direct Asymmetric Synthesis of β-Amino Ketones from Sulfinimines (<i>N</i>-Sulfinylimines). Synthesis of (−)-Indolizidine 209B
作者:Franklin A. Davis、Bin Yang
DOI:10.1021/ol035981+
日期:2003.12.1
in one pot to protected amino ketones, which are valuable chiral building blocks for the assembly of piperidines. The utility of this methodology is illustrated in a concise asymmetric synthesis of (-)-indolizidine 209B. [reaction: see text]
直接从甲基酮的烯醇钾和对映体纯的亚氨磺酸亚胺制得的N-亚磺酰基β-氨基酮在一个罐中转化为受保护的氨基酮,这是组装哌啶的重要手性结构单元。该方法的实用性在(-)-吲哚唑烷209B的简明不对称合成中得到了说明。[反应:看文字]