Highly Regio- and Enantioselective Hydrogenation of Conjugated α-Substituted Dienoic Acids
作者:Xian Liu、Song Liu、Quanjun Wang、Gang Zhou、Lin Yao、Qin Ouyang、Ru Jiang、Yu Lan、Weiping Chen
DOI:10.1021/acs.orglett.0c00915
日期:2020.4.17
Highly regio- and enantioselective hydrogenation of conjugated α-substituted dienoic acids was realized for the first time using Trifer–Rh complex, providing a straightforward method for the synthesis of chiral α-substituted γ,δ-unsaturated acids. DFT calculations revealed N+H–O hydrogen bonding interaction is formed to stabilize the transition state and the coordination of 4,5-double bond to Rh(III)
使用Trifer-Rh配合物首次实现了对共轭α-取代二烯酸的高度区域和对映选择性加氢,为合成手性α-取代的γ,δ-不饱和酸提供了一种简单的方法。DFT计算表明,形成N + H–O氢键相互作用可稳定过渡态,并且4,5-双键与Rh(III)中心的配位将促进还原消除过程。该氢化提供了沙比特利前体的克级合成。