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  • Title: Charge migration in dicationic electrophiles and its application to the synthesis of aza-polycyclic aromatic compounds.
    Author: Li A, Kindelin PJ, Klumpp DA.
    Journal: Org Lett; 2006 Mar 16; 8(6):1233-6. PubMed ID: 16524311.
    Abstract:
    [reaction: see text] Superacid-promoted reactions of dicationic electrophiles have been studied, and the positive charge centers are found to migrate apart in a predictable manner. Using isotopic labeling the charge migration is found in one system to occur through successive deprotonation-reprotonation steps. The charge migration chemistry is the basis for new general synthetic route to aza-polycyclic aromatic compounds.
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