立体中心
化学
对映选择合成
羟基化
催化作用
基质(水族馆)
组合化学
环己烷
立体化学
共价键
有机化学
酶
海洋学
地质学
作者
Andrea Palone,Guillem Casadevall,Sergi Ruiz‐Barragán,Arnau Call,Sílvia Osuna,Massimo Bietti,Miguel Costas
摘要
Enantioselective C–H oxidation is a standing chemical challenge foreseen as a powerful tool to transform readily available organic molecules into precious oxygenated building blocks. Here, we describe a catalytic enantioselective hydroxylation of tertiary C–H bonds in cyclohexane scaffolds with H2O2, an evolved manganese catalyst that provides structural complementary to the substrate similarly to the lock-and-key recognition operating in enzymatic active sites. Theoretical calculations unveil that enantioselectivity is governed by the precise fitting of the substrate scaffold into the catalytic site, through a network of complementary weak non-covalent interactions. Stereoretentive C(sp3)–H hydroxylation results in a single-step generation of multiple stereogenic centers (up to 4) that can be orthogonally manipulated by conventional methods providing rapid access, from a single precursor to a variety of chiral scaffolds.
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