Site- and Enantiodifferentiating C(sp3)-H Oxidation Enables Asymmetric Access to Structurally and Stereochemically Diverse Saturated Cyclic Ethers.
Site- and Enantiodifferentiating C(sp3)-H Oxidation Enables Asymmetric Access to Structurally and Stereochemically Diverse Saturated Cyclic Ethers.
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DOI：
10.1021/jacs.0c09636
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发表时间：
2020-11
影响因子：
15
通讯作者：
Shu-tao Sun;Yiying Yang;Ran Zhao;Dongju Zhang;Lei Liu
中科院分区：
文献类型：
--
作者：
Shu-tao Sun;Yiying Yang;Ran Zhao;Dongju Zhang;Lei Liu
A manganese-catalyzed site- and enantiodifferentiating oxidation of C(sp3)-H bonds in saturated cyclic ethers has been described. The mild and practical method is applicable to a range of tetrahydrofurans, tetrahydropyrans, and medium-sized cyclic ethers with multiple stereocenters and diverse substituent patterns in high efficiency with extremely efficient site- and enantiodiscrimination. Late-stage application in complex biological active molecules was further demonstrated. Mechanistic studies by combined experiments and computations elucidated the reaction mechanism and origins of stereoselectivity. The ability to employ ether substrates as the limiting reagent, together with a broad substrate scope, and a high level of chiral recognition, represent a valuable demonstration of the utility of asymmetric C(sp3)-H oxidation in complex molecule synthesis.
