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  • Title: Preparation of tetrasubstituted furans via intramolecular Wittig reactions with phosphorus ylides as intermediates.
    Author: Kao TT, Syu SE, Jhang YW, Lin W.
    Journal: Org Lett; 2010 Jul 02; 12(13):3066-9. PubMed ID: 20521775.
    Abstract:
    Novel preparation of tetrasubstituted furans, starting from the Michael acceptors, tributylphosphine, and acyl chlorides, is realized. A broad range of highly functional furans can be efficiently generated in one step at room temperature within 10 min to 21 h in moderate to high yields (60-99%). The reaction was proposed to proceed via intramolecular Wittig-type reactions, using phosphorus ylides as intermediates.
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