Highly Efficient Brønsted Acid-Catalyzed Cycloisomerizations of Alkynes Bearing Bis(acetoxy) Groups to Indenyl Ketones
作者:Yuanhong Liu、Shaolin Zhou、Guijie Li、Bin Yan、Shenghai Guo、Yebing Zhou、Hao Zhang、Peng George Wang
DOI:10.1002/adsc.200800037
日期:2008.4.7
A Brønstedacid-catalyzedcycloisomerization of functionalized alkynes is described, which is assumed to be initiated through the formation of a benzylic cation intermediate. The reaction offers a highlyefficient and straightforward route to indenylketones with a wide range of substituents under mild conditions.