Enantioselective Construction of α-Quaternary Cyclobutanones by Catalytic Asymmetric Allylic Alkylation
作者:Corey M. Reeves、Christian Eidamshaus、Jimin Kim、Brian M. Stoltz
DOI:10.1002/anie.201301815
日期:2013.6.24
No strain, no gain! The first transition metal‐catalyzed enantioselective α‐alkylation of cyclobutanones is reported. This method employs palladium catalysis and an electron‐deficient PHOX‐type ligand to afford all‐carbon α‐quaternary cyclobutanones in good to excellent yields and enantioselectivities (see scheme).
没有压力,没有收获!报道了第一个过渡金属催化的环丁酮的对映选择性α-烷基化反应。该方法采用钯催化和缺电子 PHOX 型配体,以良好至极好的收率和对映选择性(参见方案)提供全碳 α-季环丁酮。