Gold(I)-Catalyzed Rearrangement of Alkynyloxiranes: A Mild Access to Divinyl Ketones
作者:Marie-Caroline Cordonnier、Aurélien Blanc、Patrick Pale
DOI:10.1021/ol800219k
日期:2008.4.1
Acyloxylated divinyl ketones are conveniently formed by a new gold(I)-catalyzed rearrangement of (3-acyloxyprop-1-ynyl)oxiranes.
Gold(I)/(III)-Catalyzed Rearrangement of Divinyl Ketones and Acyloxyalkynyloxiranes into Cyclopentenones
作者:Marie Hoffmann、Jean-Marc Weibel、Pierre de Frémont、Patrick Pale、Aurélien Blanc
DOI:10.1021/ol403663j
日期:2014.2.7
Multifaceted gold(I/III) catalysts with their carbophilic and oxophilic characters catalyzed very efficiently the formation of hydroxylated cyclopentenones from simple divinyl ketones or acyloxyalkynyloxiranes. The Nazarov reaction is rapidly performed in dichloroethane with 5 mol % of the simple gold(III) trichloride salt at 70 °C, while the rearrangement of alkynyloxiranes requires 5 mol % of a more