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Issue 6, 2014
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Cu-MOFs as active, selective and reusable catalysts for oxidative C–O bond coupling reactions by direct C–H activation of formamides, aldehydes and ethers

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Abstract

MOFs with Cu2+ centers linked to four nitrogen atoms from azaheterocyclic compounds, i.e., pyrimidine [Cu(2-pymo)2] and imidazole [Cu(im)2], are active, stable and reusable catalysts for oxidative C–O coupling reactions by direct C–H activation of formamides, aldehydes and ethers. The measured catalytic activities are clearly superior to other homogeneous cupric salts, especially for the [Cu(im)2] MOF. The previously reported activity of the Cu2+ centers for cumene oxidation allows the use of the MOF as a bifunctional catalyst for olefin epoxidation with O2. The overall catalytic process consists of a cascade reaction in which the Cu-MOF first produces cumyl hydroperoxide and then the same Cu2+ centers catalyze the oxidative C–O coupling reaction using the generated hydroperoxide as the oxidant.

Graphical abstract: Cu-MOFs as active, selective and reusable catalysts for oxidative C–O bond coupling reactions by direct C–H activation of formamides, aldehydes and ethers

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Article information


Submitted
10 Jan 2014
Accepted
17 Mar 2014
First published
18 Mar 2014

Catal. Sci. Technol., 2014,4, 1829-1836
Article type
Paper

Cu-MOFs as active, selective and reusable catalysts for oxidative C–O bond coupling reactions by direct C–H activation of formamides, aldehydes and ethers

I. Luz, A. Corma and F. X. Llabrés i Xamena, Catal. Sci. Technol., 2014, 4, 1829
DOI: 10.1039/C4CY00032C

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