FeCl<sub>3</sub>-Catalyzed Nucleophilic Substitution of Propargylic Acetates with Enoxysilanes
作者:Zhuang-ping Zhan、Xu-bin Cai、Shao-pei Wang、Jing-liang Yu、Hui-juan Liu、Yuan-yuan Cui
DOI:10.1021/jo701782g
日期:2007.12.1
[Graphics]An efficient FeCl3-catalyzed substitution reaction of propargylic acetates with enoxysilanes under mild conditions to afford corresponding gamma-alkynyl ketones has been developed. The substitution reaction is followed by a TsOH-catalyzed cyclization without purification of the gamma-alkynyl ketone intermediates, offering a straightforward synthetic route to tri- or tetrasubstituted furans.