Royal Society of Chemistry, Organic and Biomolecular Chemistry, 1(9), p. 101-104
DOI: 10.1039/c0ob00758g
Wiley-VCH Verlag, ChemInform, 17(42), p. no-no, 2011
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Substituted indenes can be prepared after a sequence [1,3] O-acyl shift-hydroarylation-[1,3] O-acyl shift. Each step is catalyzed by a cationic NHC-Gold(I) species generated in situ after reaction between [(IPr)AuOH] and HBF(4)·OEt(2). This interesting silver-free way is fully supported by a computational study justifying the formation of each intermediate.