Saturated abnormal NHC-gold(I) complexes

• Verfasst von: Manzano, Rubén [VerfasserIn]
• Verfasst von: Rominger, Frank [VerfasserIn]
• Verfasst von: Hashmi, A. Stephen K. [VerfasserIn]
• Titel: Saturated abnormal NHC-gold(I) complexes
• Titelzusatz: synthesis and catalytic activity
• Verf.angabe: Rubén Manzano, Frank Rominger, A. and Stephen K. Hashmi
• E-Jahr: 2013
• Jahr: March 19, 2013
• Umfang: 5 S.
• Teil: volume:32
• Teil: year:2013
• Teil: number:7
• Teil: pages:2199-2203
• Teil: extent:5
• Fussnoten: Gesehen am 22.06.2021
• Titel Quelle: Enthalten in: Organometallics
• Ort Quelle: Washington, DC : ACS Publ., 1982
• Jahr Quelle: 2013
• Band/Heft Quelle: 32(2013), 7, Seite 2199-2203
• ISSN Quelle: 1520-6041
• DOI: doi:10.1021/om4000659
• Datenträger: Online-Ressource
• Sprache: eng
• Bibliogr. Hinweis: Erscheint auch als : Druck-Ausgabe: Manzano, Ruben: Saturated abnormal NHC-​gold(I) complexes. - 2013
• K10plus-PPN: 176102678X

Abstract

New saturated abnormal N-heterocyclic carbene complexes of gold(I) have been prepared by a 1,3-dipolar cycloaddition of an in situ generated azomethine ylide with an isocyanogold(I) choride. A series of different substituents on the nitrogen atom of the 1,3-dipole are tolerated without problem. Substitutents on a carbon atom of the 1,3-dipole are problematic in the case of the isocyanogold(I) chlorides; only low yields are obtained. However, the corresponding isocyanogold(I) iodide shows good reactivity, and these abnormal N-heterocyclic carbenes bear the substituent in a position α to the carbene carbon, as proven by a crystal structure analysis of one of the products. Some of the new saturated abnormal N-heterocyclic carbene complexes were then tested in the gold-catalyzed phenol synthesis; moderate turnover numbers of 252-380 could be reached.