Construction of a Chiral β-Fluoroamine by Asymmetric Mannich Reaction of 2-Fluoroindanone with Pyrazolinone Ketimines
作者:Weizhi Gu、Jindong Li、Kuiliang Li、Qi Sun、Tong Li、Zhenggen Zha、Zhiyong Wang
DOI:10.1021/acs.joc.2c02040
日期:——
The asymmetric Mannich reaction of 2-fluoroindanone with ketimine was developed under the catalysis of a kind of chiral copper complex, affording a chiral tetrahedral center containing fluorine. A series of β-fluoroamine derivatives can be obtained in excellent yields (73–94%) with high diastereoselectivities (>99:1 dr) and enantioselectivities (89–99%). The possible transition state was supported
在一种手性铜配合物的催化下,2-氟茚满酮与酮亚胺发生不对称曼尼希反应,得到含氟手性四面体中心。可以以优异的收率 (73–94%) 获得一系列 β-氟胺衍生物,并具有高非对映选择性 (>99:1 dr) 和对映选择性 (89–99%)。可能的过渡态得到了密度泛函理论计算的支持。