A Copper Metal–Organic Framework as an Efficient and Recyclable Catalyst for the Oxidative Cross‐Dehydrogenative Coupling of Phenols and Formamides. Issue 10 (23rd August 2013)

• Record Type: Journal Article
• Authors: Phan, Nam T. S.; Nguyen, Tung T.; Vu, Phuong H. L.
• Is Part Of: ChemCatChem. Volume 5:Issue 10(2013:Oct.)
• Page Start: 3068
• Page End: 3077
• Publication Date: 2013-08-23
• Subjects: Catalysis -- Periodicals; 541.39505
• DOI: 10.1002/cctc.201300400
• Languages: English
• ISSNs: 1867-3880

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>A crystalline porous metal‐organic framework Cu₂(BPDC)₂(BPY) (BPDC=4, 4′‐biphenyldicarboxylate, BPY=4, 4′‐bipyridine) was synthesized and characterized by several techniques including XRD, SEM, TEM, thermogravimetric analysis, FTIR, atomic absorption spectrophotometry, hydrogen temperature‐programmed reduction, and nitrogen physisorption measurements. The Cu₂(BPDC)₂(BPY) could be employed as a heterogeneous catalyst for the copper‐catalyzed cross‐dehydrogenative coupling reaction of DMF with 2‐substituted phenols to form organic carbamates through CH activation under oxidative conditions. The Cu₂(BPDC)₂(BPY) offered higher catalytic activity than common copper salts such as Cu(OAc)₂, CuCl, CuCl₂, CuI, and Cu(NO₃)₂ as well as other Cu–MOFs such as Cu₃(BTC)₂, Cu(BDC), and Cu(BPDC). The Cu₂(BPDC)₂(BPY) catalyst could be facilely separated from the reaction mixture, could be recovered and reused several times without significant degradation in catalytic activity.</p> </abstract>