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  • Title: Manganese dioxide catalyzed N-alkylation of sulfonamides and amines with alcohols under air.
    Author: Yu X, Liu C, Jiang L, Xu Q.
    Journal: Org Lett; 2011 Dec 02; 13(23):6184-7. PubMed ID: 22040008.
    Abstract:
    By simply running the reactions under air and solvent-free conditions using catalytic amounts of manganese dioxide, a practical and efficient N-alkylation method for a variety of sulfonamides and amines using alcohols as green alkylating reagents was developed.
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