A silver-catalyzed spirocyclization of alkynyl silyl enol ethers |
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| Authors: | Schäfer Christian Miesch Michel Miesch Laurence |
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| Institution: | Laboratoire de Chimie Organique Synthétique, Institut de Chimie, UMR 7177, Université de Strasbourg, 1 rue Blaise Pascal, BP 296/R8, 67008 Strasbourg-Cedex, France. |
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| 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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