Metal-organic frameworks (MOFs) bring new life to hydrogen-bonding organocatalysts in confined spaces

Alegre-Requena, Juan V. and Marques-Lopez, Eugenia and Herrera, Raquel P. and Diaz, David Diaz (2016) Metal-organic frameworks (MOFs) bring new life to hydrogen-bonding organocatalysts in confined spaces. CRYSTENGCOMM, 18 (22). pp. 3985-3995. ISSN 1466-8033,

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Abstract

Hydrogen-bonding organocatalysis has emerged as a promising biomimetic alternative to Lewis acid catalysis. Urea, thiourea and squaramide moieties represent the most common hydrogen-bond donors used for the preparation of these catalysts. However, their significant tendency to undergo self-quenching (self-aggregation) often decreases their solubility and reactivity. Recently, scientists have found a promising way around this problem by immobilizing the hydrogen-bonding organocatalysts on metal-organic frameworks (MOFs). Along with advantageous modular synthesis and recycling properties, the tunable porosity and topology of MOFs also allows fast mass transport and/or interactions with substrates. Herein, we highlight the existing examples dealing with the fabrication and testing of hydrogen-bonding organocatalyst-containing MOFs, providing also our vision for further advances in this area. The results derived from these studies will likely serve as inspiration for the future development of superior hydrogen-bonding organocatalysts to accomplish in confined spaces chemical transformations that are either slow or unaffordable under standard homogeneous conditions.

Item Type: Article
Uncontrolled Keywords: POSTSYNTHETIC MODIFICATION; HETEROGENEOUS CATALYSTS; ASYMMETRIC CATALYSIS; UPTAKE CAPABILITY; CHEMISTRY; UIO-67;
Subjects: 500 Science > 540 Chemistry & allied sciences
Divisions: Chemistry and Pharmacy > Institut für Organische Chemie > Arbeitskreis Prof. Dr. David Díaz Díaz
Depositing User: Dr. Gernot Deinzer
Date Deposited: 22 Mar 2019 08:10
Last Modified: 22 Mar 2019 08:10
URI: https://pred.uni-regensburg.de/id/eprint/2688

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