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    • Dual Catalysis in Enantioselective Oxidopyrylium-Based [5+2] Cycloadditions 

      Burns, Noah; Witten, Michael R; Jacobsen, Eric N. (American Chemical Society, 2011)
      A new method is reported for effecting catalytic enantioselective intramolecular [5+2] cycloadditions based on oxidopyrylium intermediates. The dual catalyst system consists of a chiral primary aminothiourea and a second ...