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Beilstein J. Org. Chem. 2011, 7, 878–885, doi:10.3762/bjoc.7.100
Graphical Abstract
Scheme 1: Alkynyl and allenyl substrates in gold-catalyzed formation of furans.
Scheme 2: Synthetic approach to functionalized furans.
Figure 1: Natural products possessing a 2-butenylfuran motif.
Scheme 3: Mechanistic proposal.