Enantioselective Synthesis of Quaternary Carbon Stereogenic Centers through Copper-Catalyzed Conjugate Additions of Aryl- and Alkylaluminum Reagents to Acyclic Trisubstituted Enones
作者:Jennifer A. Dabrowski、Matthew T. Villaume、Amir H. Hoveyda
DOI:10.1002/anie.201304035
日期:2013.7.29
Acyclic quaternary carbons by conjugate addition: The first examples of catalytic enantioselective conjugate additions of aryl and alkyl units that generate acyclic all‐carbon quaternary stereogenic centers have been developed (see scheme). The requisite organoaluminum reagents can either be prepared in situ from easily available organolithiums or purchased at low cost.
通过共轭加成的无环季碳:已经开发出芳基和烷基单元的催化对映选择性共轭加成的第一个例子,其产生无环全碳四元立体中心(参见方案)。所需的有机铝试剂可以由容易获得的有机锂原位制备或以低成本购买。