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  • Title: Termination of Mn(III)-based oxidative cyclizations by trapping with azide.
    Author: Snider BB, Duvall JR.
    Journal: Org Lett; 2004 Apr 15; 6(8):1265-8. PubMed ID: 15070313.
    Abstract:
    The radicals formed in Mn(III)-based oxidative free-radical cyclizations of beta-keto esters and malonate esters can be trapped with sodium azide and Mn(III) to give cyclic and bicyclic azides in 30-80% yield. Reduction of the azide gives bi- and tricyclic lactams. [reaction: see text]
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