Chiral 1,3,2-Diazaphospholenes as Catalytic Molecular Hydrides for Enantioselective Conjugate Reductions
作者:Solène Miaskiewicz、John H. Reed、Pavel A. Donets、Caio C. Oliveira、Nicolai Cramer
DOI:10.1002/anie.201801300
日期:2018.4.3
of chiral, conformationally restricted methoxy‐1,3,2‐diazaphospholene catalysts is reported. We demonstrate their catalytic potential in asymmetric 1,4‐reductions of α,β‐unsaturated carbonyl derivatives, including enones, acyl pyrroles, and amides, which proceeded in enantioselectivities of up to 95.5:4.5 e.r.
1,2,3,2-二氮杂二膦烯原子具有极化的PH键,并以分子氢化物形式出现。本文报道了一类手性,构象受限的甲氧基-1,3,2-二氮杂磷腈催化剂。我们证明了它们在α,β-不饱和羰基衍生物(包括烯酮,酰基吡咯和酰胺)的不对称1,4-还原反应中的催化潜能,其对映选择性高达95.5:4.5 er