A facile approach to spirocyclic butenolides through cascade cyclization/oxidative cleavage reactions of (Z)-enynols catalyzed by gold under dioxygen atmosphere
作者:Feijie Song、Yuanhong Liu
DOI:10.1016/j.jorganchem.2008.10.046
日期:2009.2
A facile approach for the syntheses of spirocyclic butenolides through cascade cyclization/oxidative cleavage reactions of (Z)-enynols bearing cyclic substituents at the C-1 position catalyzed by gold under dioxygen atmosphere has been developed. A variety of substituted butenolides was constructed in a regioselective manner from suitably substituted (Z)-2-en-4-yn-1-ols. (Z)-Enynols substituted both
Cleavage of a Carbon−Carbon Triple Bond via Gold-Catalyzed Cascade Cyclization/Oxidative Cleavage Reactions of (<i>Z</i>)-Enynols with Molecular Oxygen
作者:Yuanhong Liu、Feijie Song、Shenghai Guo
DOI:10.1021/ja062610q
日期:2006.9.1
A highly efficient carbon-carbon triple bondcleavage reaction of (Z)-enynols was developed, which offered a new route to highly substituted butenolides. The methodology is realized by a tandem reaction using a single gold(I) catalyst, which could catalyze different reactions of cyclization/oxidativecleavage in the same vessel.