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silica supported Angew paper revised after 1st review
1.76 MB, Word document
Journal | Angewandte Chemie International Edition |
---|---|
Date | Accepted/In press - 8 Sep 2016 |
Date | E-pub ahead of print - 30 Sep 2016 |
Date | Published (current) - 24 Oct 2016 |
Issue number | 44 |
Volume | 55 |
Number of pages | 5 |
Pages (from-to) | 13798-13802 |
Early online date | 30/09/16 |
Original language | English |
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.
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