Multisubstituted Furan Formation from (<i>Z</i>)- or (<i>E</i>)-Enynyl Acetates: Tandem Reactions Accelerated by Electron-Donating Groups on Aromatic Rings
作者:Noriko Okamoto、Reiko Yanada
DOI:10.1021/jo300251c
日期:2012.4.20
Multisubstituted furans were readily prepared from (Z)- or (E)-conjugated enynyl acetates with NXS under metal-free conditions at room temperature via the same haloallenyl ketone intermediates. This tandem haloallenyl ketone formation–furan formation reaction sequence was accelerated by electron-donating groups on the aromaticrings.