Gold(I)-Catalyzed Stereoselective Olefin Cyclopropanation
Magnus J. Johansson(University of California, Berkeley), David J. Gorin(University of California, Berkeley), Steven T. Staben(University of California, Berkeley), F. Dean Toste(University of California, Berkeley)
Cited by 528
Abstract
A triphenylphosphinegold(I)-catalyzed cyclopropanation of olefins using propargyl esters as gold(I)-carbene precursors is reported. This reaction provided the basis for the use of a DTBM-SEGPHOS gold(I) complex as a catalyst in the enantioselective (up to 94% ee) preparation of vinyl cyclopropanes with high cis-selectivity.
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