Ferric(III) Nitrate: An Efficient Catalyst for the Regioselective Friedel-Crafts Reactions of Indoles and tert-Enamides in Water
作者:Ran Jiang、Xiao-Jin Wu、Xu Zhu、Xiao-Ping Xu、Shun-Jun Ji
DOI:10.1002/ejoc.201000994
日期:2010.11
The ferric nitrate catalyzed Friedel–Crafts reactions of various indoles and tertiary enamides, which proceed in water at room temperature, are demonstrated for an efficient, atom-economical and environmentally friendly route to produce indole derivatives under mild conditions. Based on experimental data and mechanistic studies, the iron(III) ion was found to activate the electron-rich C=C bond with