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Article Dans Une Revue Tetrahedron Letters Année : 2011

Electrophilic carbon transfer in gold catalysis: synthesis of substituted chromones

Résumé

Using easily accessible aromatic alkoxy-arylalkynones, we have investigated the gold-catalyzed intramolecular addition of ethers to alkynes, to give easy access to various substituted chromones. This reaction involves the transfer of the ether substituent via a carbodemetallation process. We also noticed a competing isomerization of several starting materials for which we propose a second gold catalyzed mechanism.

Domaines

Chimie organique

Dates et versions

hal-00843465 , version 1 (11-07-2013)

Identifiants

Citer

Jacques Renault, Zhao Qian, Philippe Uriac, Nicolas Gouault. Electrophilic carbon transfer in gold catalysis: synthesis of substituted chromones. Tetrahedron Letters, 2011, 52 (19), pp.2476-2479. ⟨10.1016/j.tetlet.2011.03.018⟩. ⟨hal-00843465⟩
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