Enantioselective <i>N</i>-Heterocyclic Carbene Catalysis via Acyl Azolium without Exogenous Oxidants
作者:Jing Cao、Rachel Gillard、Azar Jahanbakhsh、Martin Breugst、David W. Lupton
DOI:10.1021/acscatal.0c02705
日期:2020.10.16
An approach to the α,β-unsaturated acyl azolium has been developed that exploits N-heterocyclic carbenes (NHCs) and acyl fluorides, without additional oxidants, bases, or preactivated pro-nucleophiles. These conditions have been applied in four classes of NHC-catalyzed reaction. In all cases, the expected products were produced with high yield and enantioselectivity, using two sets of closely related
已经开发出一种α,β-不饱和酰基偶氮的方法,该方法利用了N-杂环卡宾(NHC)和酰基氟,而无需使用其他氧化剂,碱或预活化的亲核试剂。这些条件已应用于四类NHC催化的反应中。在所有情况下,使用两组紧密相关的反应条件无需额外优化即可生产出预期的产物,具有高收率和对映选择性。