Abstract
Cyclodextrins are molecular capsules of adequate size to include metallo-organic guests and improve their solubility, shelf-life, and catalytic activity and recyclability, resembling the alchemists metal-in-a-pot reactions on the molecular scale. This work reports literature examples of solid cyclodextrin inclusion compounds with metal catalysts and metallocyclodextrin catalysts, that find applications in two main and quite distinct fields, chemical reactions of industrial interest - olefin epoxidation, olefin polymerization and silicon curing (cross-linking) reactions - and biochemical reactions that mimic natural enzymes, of which artificial carbonic anhydrase and glutathione peroxidase metal-cyclodextrin compounds were successfully prepared.
Keywords: Cyclodextrins, inclusion compounds, metal catalysts, solid-state chemistry, artificial enzymes
Current Organic Chemistry
Title: Modern Alchemy with Metal Complexes Inside Cyclodextrins, The Molecular Cauldrons
Volume: 14 Issue: 13
Author(s): S. S. Braga
Affiliation:
Keywords: Cyclodextrins, inclusion compounds, metal catalysts, solid-state chemistry, artificial enzymes
Abstract: Cyclodextrins are molecular capsules of adequate size to include metallo-organic guests and improve their solubility, shelf-life, and catalytic activity and recyclability, resembling the alchemists metal-in-a-pot reactions on the molecular scale. This work reports literature examples of solid cyclodextrin inclusion compounds with metal catalysts and metallocyclodextrin catalysts, that find applications in two main and quite distinct fields, chemical reactions of industrial interest - olefin epoxidation, olefin polymerization and silicon curing (cross-linking) reactions - and biochemical reactions that mimic natural enzymes, of which artificial carbonic anhydrase and glutathione peroxidase metal-cyclodextrin compounds were successfully prepared.
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Cite this article as:
Braga S. S., Modern Alchemy with Metal Complexes Inside Cyclodextrins, The Molecular Cauldrons, Current Organic Chemistry 2010; 14 (13) . https://dx.doi.org/10.2174/138527210791616894
DOI https://dx.doi.org/10.2174/138527210791616894 |
Print ISSN 1385-2728 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-5348 |
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Catalytic C-H bond activation as a tool for functionalization of heterocycles
The major topic is the functionalization of heterocycles through catalyzed C-H bond activation. The strategies based on C-H activation not only provide straightforward formation of C-C or C-X bonds but, more importantly, allow for the avoidance of pre-functionalization of one or two of the cross-coupling partners. The beneficial impact of ...read more
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