Anodic Cyanation of (<i>S</i>)-(-)-1-(1-Phenylethyl)piperidine: an Expeditious Synthesis of (<i>S</i>)-(+)-Coniine
作者:Jean-Pierre Hurvois、Nicolas Girard、Laurent Pouchain、Claude Moinet
DOI:10.1055/s-2006-944214
日期:2006.7
efficient asymmetric synthesis of enantiopure (S)-(+)-coniine is reported. Anodic cyanation of (-)-1-[(1S)-1-phenylethyl]piperidine, derived from [(1S)-1-phenylethyl]amine, results in regioselective formation of the corresponding α-amino-nitrile, which was alkylated with propyl iodide to give a bifunctional derivative. The latter underwent a stereoselective reductive decyanation (80% de), the product
报告了对映体纯 (S)-(+)-coniine 的短而有效的不对称合成。(-)-1-[(1S)-1-苯乙基]哌啶的阳极氰化,衍生自[(1S)-1-苯乙基]胺,导致区域选择性形成相应的α-氨基-腈,其被烷基化碘化丙烷得到双功能衍生物。后者进行立体选择性还原脱氰 (80% de),其产物氢解得到 (S)-(+)-coniine (99% ee),从 (-)-1-[(-)-1-[( 1S)-1-苯乙基]哌啶。