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手性双氮配体对芳环 C-H 键的对映选择性硼化反应。

Enantioselective Borylation of Aromatic C-H Bonds with Chiral Dinitrogen Ligands.

机构信息

Beijing National Laboratory of Molecular Sciences (BNLMS) and Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education College of Chemistry and Molecular Engineering, Peking University, Beijing, China.

Department of Chemistry, University of California, Berkeley, CA, 94720, USA.

出版信息

Angew Chem Int Ed Engl. 2017 Jun 12;56(25):7205-7208. doi: 10.1002/anie.201702628. Epub 2017 May 16.

Abstract

The borylation of C-H bonds catalyzed by transition metals has been investigated extensively in the past two decades, but no iridium-catalyzed enantioselective borylation of C-H bonds has been reported. We report a set of iridium-catalyzed enantioselective borylations of aromatic C-H bonds. This reaction relies on a set of newly developed chiral quinolyl oxazoline ligands. This process proceeds under mild conditions with good to excellent enantioselectivity, and the borylated products can be converted to enantioenriched derivatives containing new C-O, C-C, C-Cl, or C-Br bonds.

摘要

在过去的二十年中,过渡金属催化的 C-H 键硼化反应得到了广泛的研究,但尚未有报道过铱催化的 C-H 键对映选择性硼化反应。我们报告了一组铱催化的芳香族 C-H 键对映选择性硼化反应。该反应依赖于一组新开发的手性喹啉恶唑啉配体。该过程在温和的条件下进行,具有良好到优异的对映选择性,并且硼化产物可以转化为含有新的 C-O、C-C、C-Cl 或 C-Br 键的对映体富集衍生物。

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