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  • Title: A silver-catalyzed spirocyclization of alkynyl silyl enol ethers.
    Author: Schäfer C, Miesch M, Miesch L.
    Journal: Chemistry; 2012 Jun 25; 18(26):8028-31. PubMed ID: 22674788.
    Abstract:
    Ring out the old: The cycloisomerization of alkynyl silyl enol ethers proceeds at ambient temperature under the mild conditions of silver catalysis. Mono- or bicyclic spiro compounds can be obtained by 5-exo-dig reactions. Trapping the vinyl silver species with an iodide source, such as N-iodosuccinimide (NIS), afforded the alkenyl iodide derivatives.
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