Enantioselective Synthesis of <i>anti</i>-1,2-Diamines by Cu-Catalyzed Reductive Couplings of Azadienes with Aldimines and Ketimines
作者:Xinxin Shao、Kangnan Li、Steven J. Malcolmson
DOI:10.1021/jacs.8b04750
日期:2018.6.13
Here we report highly efficient and chemoselective azadiene-imine reductive couplings catalyzed by (Ph-BPE)Cu-H that afford anti-1,2-diamines. In all cases, reactions take place with either aldimine or ketimine electrophiles to deliver a single diastereomer of product in >95:5 er. The products' diamines are easily differentiable, facilitating downstream synthesis.
在这里,我们报告了由 (Ph-BPE)Cu-H 催化的高效且化学选择性的氮杂二烯-亚胺还原偶联,可提供抗 1,2-二胺。在所有情况下,与醛亚胺或酮亚胺亲电子试剂发生反应,以> 95:5 er 传递单一非对映异构体产物。产品的二胺很容易区分,有利于下游合成。