Cyclization of 2??Alkynylallyl Alcohols to Highly Substituted Furans by Gold (I)–Carbene Complexes

…, T Häffner, M Rudolph, F Rominger

Index: Hashmi, A. Stephen K.; Rudolph, Matthias; Rominger, Frank European Journal of Organic Chemistry, 2011 , # 4 p. 667 - 671

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Citation Number: 30

Abstract

Abstract Various 2-alkynylallyl alcohols were synthesized by a generally applicable Sonogashira coupling protocol. Subsequent gold-catalyzed transformation was investigated. The use of Au I catalysts bearing carbene ligands, of either the N-heterocyclic carbene or nitrogen acyclic carbene type, delivered the desired products with low catalyst loadings and under very mild reaction conditions. A broad array of substrates was tested, including alkyl ...