<i>cis</i>-Selective Single-Cleavage Skeletal Rearrangement of 1,6-Enynes Reveals the Multifaceted Character of the Intermediates in Metal-Catalyzed Cycloisomerizations
作者:Eloísa Jiménez-Núñez、Christelle K. Claverie、Christophe Bour、Diego J. Cárdenas、Antonio M. Echavarren
DOI:10.1002/anie.200803269
日期:2008.9.29
Gold(I)-Catalyzed Cyclizations of 1,6-Enynes: Alkoxycyclizations andexo/endo Skeletal Rearrangements
Gold(I) complexes are the most active catalysts for alkoxy- or hydroxycyclization and for skeletalrearrangement reactions of 1,6-enynes. Intramolecular alkoxycyclizations also proceed efficiently in the presence of gold(I) catalysts. The first examples of the skeletalrearrangement of enynes by the endocyclic cyclization pathway are also documented. Iron(III) is also able to catalyze exo and endo