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For example, 1,1′-bi-2-naphthyl derivatives such as 3,3′-bis- (triphenylsilyl)-1,1′-bi-2-naphthol phosphoric acid catalyze this reaction in organic solvent (Figure 8a). 59, 60, 61 The final ...
More information: A. Stephen K. Hashmi, Cyclization of 2-Alkynylallyl Alcohols to Highly Substituted Furans by Gold (I)–Carbene Complexes, European Journal of Organic Chemistry, Permalink to the ...