Kinetic resolution of indolines through reductive amination of aldehydes by chiral Brønsted acid
作者:Yingwei Wang、Guangxun Li、Hongxin Liu、Zhuo Tang、Yuan Cao、Gang Zhao
DOI:10.1016/j.tetlet.2017.06.057
日期:2017.7
We have developed a highly efficient and practical strategy for the kinetic resolution of indoline derivatives, involving a chiral Brønsted acid-catalyzed iminium ion formation and asymmetric transfer hydrogenation cascade process. The kinetic resolution allows the synthesis of 2-substituted N-benzylindolines in good yields with moderate to excellent enantioselectivities.
我们已经开发了一种高效且实用的二氢吲哚衍生物动力学拆分策略,涉及手性布朗斯台德酸催化的亚胺离子形成和不对称转移氢化级联过程。动力学拆分使得可以以高收率和中等至优异的对映选择性合成2-取代的N-苄基吲哚啉。