Clarke, Aimee K, James, Michael J orcid.org/0000-0003-2591-0046, O'Brien, Peter orcid.org/0000-0002-9966-1962 et al. (2 more authors) (2016) Silica-Supported Silver Nitrate as a Highly Active Dearomatizing Spirocyclization Catalyst:Synergistic Alkyne Activation by Silver Nanoparticles and Silica. Angewandte Chemie International Edition. pp. 13798-13802. ISSN 1433-7851
Abstract
Silica-supported AgNO3 (AgNO3 -SiO2 ) catalyzes the dearomatizing spirocyclization of alkyne-tethered aromatics far more effectively than the analogous unsupported reagent; in many cases, reactions which fail using unsupported AgNO3 proceed effectively with AgNO3 -SiO2 . Mechanistic studies indicate that this is a consequence of silver nanoparticle formation on the silica surface combined with a synergistic effect caused by the silica support itself. The remarkable ease with which the reagent can be prepared and used is likely to be of much synthetic importance, in particular, by making nanoparticle catalysis more accessible to non-specialists.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2016, Wiley-VCH Verlag GmbH & Co. KG. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details. |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Chemistry (York) |
Depositing User: | Pure (York) |
Date Deposited: | 03 Oct 2016 10:52 |
Last Modified: | 17 Dec 2024 00:06 |
Published Version: | https://doi.org/10.1002/anie.201608263 |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1002/anie.201608263 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:105485 |
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Description: silica supported Angew paper revised after 1st review