Metal–Organic Frameworks Based on Copper and Dicarboxy‐Functionalized Imidazole Modified With Halides: Enhancement of Catalysis in Organic Synthesis

ABSTRACT New chloride‐ and bromide‐modified metal–organic frameworks (MOFs) based on copper and 1,3‐bis (carboxymethyl)imidazole (bcmim) derivatives have been prepared via post–synthetic modification (PSM) or by a direct route, following a simple, effective, and sustainable protocol. These materials...

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Bibliographic Details
Published in:Applied organometallic chemistry 2024-11, Vol.38 (11), p.n/a
Main Authors: Pérez‐Almarcha, Yanira, Alonso, Azahara, Albert‐Soriano, María, Martos, Mario, Pastor, Isidro M.
Format: Article
Language:English
Subjects:
Acidic oxides
Carboxylic acids
Catalysis
Catalysts
Catalytic activity
Chemical synthesis
Copper
copper, imidazole
halide modification
Halides
Imidazole
Lewis acid
Materials recovery
Metal-organic frameworks
metal–organic framework
Organic compounds
Recyclability
sustainability
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Summary:ABSTRACT New chloride‐ and bromide‐modified metal–organic frameworks (MOFs) based on copper and 1,3‐bis (carboxymethyl)imidazole (bcmim) derivatives have been prepared via post–synthetic modification (PSM) or by a direct route, following a simple, effective, and sustainable protocol. These materials have been characterized, and their catalytic activity has been studied. Cu‐bcmim‐Cl and Cu‐bcmim‐Br materials have been shown to be more efficient acidic catalytic systems than nonmodified materials. The catalytic activity has been tested as a Lewis acid catalyst in the methanolysis of styrene oxide and in the synthesis of quinolines and acridines, with the recovery and recyclability of the catalysts being possible. Furthermore, the catalytic activity of the catalysts has been tested in the oxidative coupling of formamides and carboxylic acids. This study enhanced copper‐based metal–organic frameworks (MOFs) by incorporating chloride and bromide, leading to improved catalytic properties. These halide‐modified MOFs exhibited increased microcrystallinity and superior performance in organic reactions, such as styrene oxide ring opening and the Friedländer reaction, demonstrating enhanced Lewis acid activity. Additionally, the materials proved reusable, operating under solvent‐free conditions, making them promising for sustainable organic synthesis and further catalytic applications.
ISSN:0268-2605
1099-0739
DOI:10.1002/aoc.7663