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Gold(I)-Mediated Asymmetric Carboalkoxylation
M. Uemura, I. D. G. Watson, M. Katsukawa, F. D. Toste*
University of California, Berkeley, USA
25 May 2009 (online)
The authors report a gold(I)-catalyzed carboalkoxylation for the asymmetric synthesis of benzopyrans. This report significantly expands the repertoire of enantioselective transformations available to gold carbenoids generated via 1,2-rearrangement of propargyl esters.