Chiral Lewis acid-catalyzed highly enantioselective [4 + 3] cycloaddition reactions of nitrogen-stabilized oxyallyl cations derived from allenamides |
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| Authors: | Huang Jian Hsung Richard P |
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| Affiliation: | Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, USA. |
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| Abstract: | A chiral Lewis acid-catalyzed highly enantioselective [4 + 3] cycloaddition reaction of allenamide-derived nitrogen-stabilized chiral oxyallyl cations is described here. The use of bisoxazoline ligand and CuOTf2 provides high enantioselectivity, especially with [SbF6]- as the counteranion. |
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