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Updated: May 17, 2026

Multiscale Sampling of a Heterogeneous Water/Metal Catalyst Interface using Density Functional Theory and Force-Field Molecular Dynamics
Published on: April 12, 2019
Hydrocarbon oxidation catalyzed by self-folded metal-coordinated cavitands
Katherine E Djernes1, Melissa Padilla, Magi Mettry
1Department of Chemistry, University of California-Riverside, Riverside, California 92521, USA.
Functionalized cavitands catalyze alkane C-H oxidation in water. This method converts C-H bonds to alcohols and ketones, and ethers to esters, using iron catalysts that are recoverable.
Area of Science:
- Supramolecular Chemistry
- Catalysis
- Organic Synthesis
Background:
- C-H bond functionalization is a key challenge in organic chemistry.
- Developing efficient and sustainable catalytic systems for C-H oxidation is crucial.
- Cavitands offer unique structural properties for host-guest chemistry and catalysis.
Purpose of the Study:
- To investigate the catalytic activity of functionalized cavitands in C-H oxidation reactions.
- To explore the conversion of unfunctionalized alkanes and ethers under mild conditions.
- To assess the stability and recoverability of the catalytic system.
Main Methods:
- Self-folding of functionalized cavitands through coordination with Fe(II) salts.
- Catalytic C-H oxidation reactions using tert-butyl hydroperoxide as a co-oxidant in aqueous media.
- Filtration for recovery of the cavitand-metal complex.
Main Results:
- Successful catalytic conversion of secondary and tertiary C-H bonds to ketones and alcohols, respectively.
- Efficient transformation of ethers into esters.
- Demonstrated retention of the catalytic iron(II) metal within the cavitand structure throughout the reaction.
- High recovery rates of the cavitand catalyst via simple filtration.
Conclusions:
- Functionalized cavitands serve as effective catalysts for C-H oxidation under mild aqueous conditions.
- The developed system provides a sustainable approach for alkane and ether functionalization.
- The catalyst's stability and recoverability highlight its potential for practical applications in green chemistry.
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