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
Language
- eng