Diastereoselective synthesis of γ- And δ-lactams from imines and sulfone-substituted anhydrides

Nohemy A. Sorto, Michael J. Di Maso, Manuel A. Muñoz, Ryan J. Dougherty, James C. Fettinger, Jared T. Shaw

Research output: Contribution to journalArticlepeer-review

16 Scopus citations


Sulfone-substituted γ- and δ-lactams have been prepared in a single step with high diastereoselectivity. Sulfonylglutaric anhydrides produce intermediates that readily decarboxylate to provide δ-lactams with high diastereoselectivity. Substituents at the 3- or 4-position of the glutaric anhydride induce high levels of stereocontrol. Sulfonylsuccinic anhydrides produce intermediate carboxylic acids that can be trapped as methyl esters or allowed to decarboxylate under mild conditions. This method has been applied to a short synthesis of the pyrrolizidine alkaloid (±)-isoretronecanol.

Original languageEnglish (US)
Pages (from-to)2601-2610
Number of pages10
JournalJournal of Organic Chemistry
Issue number6
StatePublished - Mar 21 2014

ASJC Scopus subject areas

  • Organic Chemistry


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