Highly Enantioselective, Base-Free Synthesis of α-Quaternary Succinimides through Catalytic Asymmetric Allylic Alkylation
作者:Tao Song、Stellios Arseniyadis、Janine Cossy
DOI:10.1002/chem.201800920
日期:2018.6.7
The synthesis of diversely substituted five‐membered ring succinimide derivatives is reported featuring a direct, base‐free, palladium‐catalyzed asymmetric allylic alkylation. The method allows a straightforward access to the desired heterocyclic scaffold bearing an all‐carbon α‐quaternary stereogenic center in high yields and good to excellent enantioselectivities. To further demonstrate the synthetic
据报道,具有不同取代基的五元环琥珀酰亚胺衍生物的合成具有直接的,无碱的,钯催化的不对称烯丙基烷基化作用。该方法可以直接获得所需的杂环骨架,该骨架具有全碳α-季立体中心,且收率高,对映选择性极好。为了进一步证明该方法的合成效用,使用选择性转化将烯丙基化的产物进一步转化为各种通用的手性构件,包括手性吡咯烷和螺环衍生物。