Synthesis and catalytic application of new [{IrCl(cod)}2(μ2-diNHC)] and [{Ir(cod)(sulfonated phosphine)}2(μ2-diNHC)] complexes. (22nd June 2022)

• Record Type: Journal Article
• Authors: Orosz, Krisztina; Czégéni, Csilla Enikő; Udvardy, Antal; Papp, Gábor; Marozsán, Natália; Kathó, Ágnes; Joó, Ferenc; Horváth, Henrietta
• Is Part Of: Phosphorus, sulfur, and silicon and the related elements. Volume 197:Number 5/6(2022)
• Page Start: 583
• Page End: 586
• Publication Date: 2022-06-22
• Subjects: Alkyne -- hydrogenation -- iridium -- ketone -- N-heterocyclic carbene -- sulfonated phosphine; Sulfur compounds -- Periodicals; Organosulfur compounds -- Periodicals; Phosphorus compounds -- Periodicals; Organophosphorus compounds -- Periodicals; Silicon compounds -- Periodicals; Organosilicon compounds -- Periodicals; 546
• DOI: 10.1080/10426507.2021.2024829
• Languages: English
• ISSNs: 1042-6507

Abstract

Abstract: Four new dinuclear iridium(I) complexes were synthesized from the di(N-heterocyclic carbene) ligand precursors 1, 1′-methylene-bis(3-benzyl-imidazolium)dichloride and 1, 1′-methylene-bis(3-(2, 4, 6-trimethylbenzyl)imidazolium)dichloride. The complexes were fully characterized by spectroscopic methods, HR-MS (ESI) spectrometry, furthermore, the structure of complexes 1 and 2 were determined by single-crystal X-ray diffraction. Complexes 3a and 3b which have sulfonated triphenylphosphine ligands, were successfully used under mild conditions as catalysts in reduction reaction of ketones via hydrogen transfer from aqueous 2-propanol, and for hydrogenation of alkynes in aqueous-organic biphasic systems. Graphical Abstract: UF0001