Intramolecular Diamination and Alkoxyamination of Alkenes with N-Sulfonyl Ureas With N-Iodosuccinimide.

Journal Article (Journal Article)

Reaction of N-δ-alkenyl-N'-sulfonyl urea 1 with N-iodosuccinimde (NIS; 2 equiv) and a catalytic amount of AgOTf (20 mol %) at room temperature led to intramolecular alkoxyamination to form bicyclic isourea 2a in 95% isolated yield. In comparison, reaction of 1 with NIS and sodium bicarbonate (1 equiv) at room temperature led to isolation of bicyclic imidazolidin-2-one 2b in 91% yield. These NIS-mediated alkoxyamination and diamination protocols were effective for a range of N-δ-alkenyl-N'-sulfonyl ureas to form the corresponding heterobicyclic compounds in good yield with high chemoselectivity and good to excellent diastereoselectivity.

Full Text

Duke Authors

Cited Authors

  • Li, H; Widenhoefer, RA

Published Date

  • June 2010

Published In

Volume / Issue

  • 66 / 26

Start / End Page

  • 4827 - 4831

PubMed ID

  • 21566674

Pubmed Central ID

  • 21566674

International Standard Serial Number (ISSN)

  • 0040-4020

Digital Object Identifier (DOI)

  • 10.1016/j.tet.2010.03.082


  • eng