Gold(I)-catalyzed intramolecular dihydroamination of allenes with N,N'-disubstituted ureas to form bicyclic imidazolidin-2-ones.

Journal Article (Journal Article)

Reaction of N-delta-allenyl urea 1 with a catalytic 1:1 mixture of gold(I) N-heterocyclic carbene complex (5)AuCl [5 = 1,3-bis(2,6-diisopropylphenyl)imidazol-2-ylidine] and AgPF(6) at room temperature for 2 h led to isolation of bicyclic imidazolidin-2-one 4 in 93% yield with >or=98% diastereomeric purity. Gold-catalyzed dihydroamination was effective for a number of N-delta- and N-gamma-allenyl ureas to form the corresponding bicyclic imidazolidin-2-ones in good yield with high diastereoselectivity.

Full Text

Duke Authors

Cited Authors

  • Li, H; Widenhoefer, RA

Published Date

  • June 2009

Published In

Volume / Issue

  • 11 / 12

Start / End Page

  • 2671 - 2674

PubMed ID

  • 19514795

Pubmed Central ID

  • PMC2813268

Electronic International Standard Serial Number (EISSN)

  • 1523-7052

International Standard Serial Number (ISSN)

  • 1523-7060

Digital Object Identifier (DOI)

  • 10.1021/ol900730w


  • eng