铜氢化物通过分子内路易斯酸实现的不同反应模式。
Distinct Reactivity Modes of a Copper Hydride Enabled by an Intramolecular Lewis Acid.
机构信息
University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109, United States.
Herbert C. Brown Laboratory, Purdue University, 560 Oval Drive, West Lafayette, Indiana 47907, United States.
出版信息
J Am Chem Soc. 2022 Aug 24;144(33):15038-15046. doi: 10.1021/jacs.2c02937. Epub 2022 Aug 12.
Abstract
We disclose a 1,4,7-triazacyclononane (TACN) ligand featuring an appended boron Lewis acid. Metalation with Cu(I) affords a series of tetrahedral complexes including a boron-capped cuprous hydride. We demonstrate distinct reactivity modes as a function of chemical oxidation: hydride transfer to CO in the copper(I) state and oxidant-induced H evolution as well as alkyne reduction.
摘要
我们公开了一种 1,4,7-三氮杂环壬烷（TACN）配体，其特点是带有附加的硼路易斯酸。用 Cu(I) 进行金属化得到一系列四面体配合物，包括硼封端的一价铜氢化物。我们证明了作为化学氧化函数的不同反应模式：在铜（I）态下向 CO 转移氢化物和氧化剂诱导的 H 释放以及炔烃还原。
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