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Steering Reaction Pathways: From Benzyl Claisen Rearrangements to Powerful Ionic Shifts

Authors

  • Viviana Valerio,

    1. Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470 Mülheim an der Ruhr (Germany), Fax: (+49) 2083062999
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  • Dr. Claire Madelaine,

    1. Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470 Mülheim an der Ruhr (Germany), Fax: (+49) 2083062999
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  • Dr. Nuno Maulide

    Corresponding author
    1. Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470 Mülheim an der Ruhr (Germany), Fax: (+49) 2083062999
    • Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470 Mülheim an der Ruhr (Germany), Fax: (+49) 2083062999
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Abstract

original image

Take a walk on the wild side: A novel benzyl Claisen cascade rearrangement of keteniminium salts is described. The reaction leads to α-arylated lactones under metal-free conditions (top scheme; Tf=trifluoromethanesulfonyl). It is further demonstrated that the cationic intermediates involved can be steered away from pericyclic reaction manifolds into powerful ionic shifts through reaction design (bottom scheme).

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