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  • Title: Chemoselective syntheses of gamma-butyrolactams using vinyl sulfilimines and dichloroketene.
    Author: Marino JP, Zou N.
    Journal: Org Lett; 2005 May 12; 7(10):1915-7. PubMed ID: 15876018.
    Abstract:
    Reactions between vinyl sulfilimines and dichloroketene generated in situ from trichloroacetyl chloride in the presence of zinc-copper couple give mixtures of alpha-dichloro-gamma-butyrolactams and alpha-dichloro-gamma-butyrolactone imines. Fine-tuning of substituents within vinyl sulfilimines results in reactions with good chemoselectivity and yield for lactams.
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