By the same authors

From the same journal

From the same journal

Silica-Supported Silver Nitrate as a Highly Active Dearomatizing Spirocyclization Catalyst: Synergistic Alkyne Activation by Silver Nanoparticles and Silica

Research output: Contribution to journalArticle

Full text download(s)

Published copy (DOI)

Author(s)

Department/unit(s)

Publication details

JournalAngewandte Chemie International Edition
DateAccepted/In press - 8 Sep 2016
DateE-pub ahead of print - 30 Sep 2016
DatePublished (current) - 24 Oct 2016
Issue number44
Volume55
Number of pages5
Pages (from-to)13798-13802
Early online date30/09/16
Original languageEnglish

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.

Bibliographical note

© 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.

Discover related content

Find related publications, people, projects, datasets and more using interactive charts.

View graph of relations