Enantioselective C2–H Alkylation of Pyridines with 1,3-Dienes via Ni–Al Bimetallic Catalysis
作者:Jiang-Fei Li、Deng Pan、Hao-Rui Wang、Tao Zhang、Yi Li、Genping Huang、Mengchun Ye
DOI:10.1021/jacs.2c09306
日期:2022.10.19
A chiral phosphine oxide-ligated Ni–Al bimetallic catalyst was used to realize an enantioselective C2–H alkylation of pyridines without the need of a C2-block. A wide range of pyridines, including unsubstituted pyridine, C3, C4, and C2-substituted pyridines, and even complex pyridine-containing bioactive molecules are well compatible with the reaction, providing up to 81% yield and up to 97% ee.
手性氧化膦配位的 Ni-Al 双金属催化剂用于实现吡啶的对映选择性 C2-H 烷基化,而无需 C2 嵌段。范围广泛的吡啶,包括未取代的吡啶、C3、C4 和 C2 取代的吡啶,甚至复杂的含吡啶生物活性分子都与反应很好地兼容,提供高达 81% 的收率和高达 97% 的 ee。