Asymmetric Allylic Alkylation in Combination with Ring-Closing Metathesis for the Preparation of Chiral N-Heterocycles
作者:Johannes F. Teichert、Suyan Zhang、Anthoni W. van Zijl、Jan Willem Slaa、Adriaan J. Minnaard、Ben L. Feringa
DOI:10.1021/ol101944j
日期:2010.10.15
Asymmetric copper-catalyzed allylic substitution with methylmagnesium bromide is employed in combination with ring-closing olefin metathesis or ene−yne metathesis to achieve the synthesis of chiral, unsaturated nitrogen heterocycles. The resulting six- to eight-membered chiral heterocycles are accessible in high yields and with excellent enantioselectivities.
甲基溴化镁的不对称铜催化的烯丙基取代与闭环烯烃复分解或烯炔复分解结合使用,可合成手性,不饱和氮杂环。所得的六至八元手性杂环可以高收率且具有优异的对映选择性地获得。