Chiral N, N'-Dioxide/Magnesium(II)-Catalyzed Enantioselective [3,3]-Sigmatropic Rearrangement of 3-Propargyloxyflavones
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A chiral N,N'-dioxide/Mg(II) catalytic system was developed for the efficient promotion of the enantioselective [3,3]-sigmatropic rearrangement of 3-propargyloxyflavones. Diverse allene-containing 3-propargyloxyflavone derivatives were thus obtained in modera... ...
