Iridium complexes with monodentate N-heterocyclic carbene ligands
Gellért Sipos,Reto Dorta +1 more
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TL;DR: In this article, a comprehensive overview on synthetic methods available to access NHC-Ir compounds, the stoichiometric activity of the resulting complexes as well as their use in catalysis and other applications is given in the following pages.
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About: This article is published in Coordination Chemistry Reviews. The article was published on 01 Dec 2017. and is currently open access.
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Citations
N-Heterocyclic Carbene Complexes in C–H Activation Reactions
TL;DR: Through discussing the role of NHC ligands in promoting challenging C-H activation methods, the reader is provided with an overview of this important area and its crucial role in forging carbon-carbon and carbon-heteroatom bonds by directly engaging ubiquitous C- H bonds.
520
Cationic iridium complexes bearing imidazol-2-ylidene ligands as transfer hydrogenation catalysts
Anna C. Hillier,Hon Man Lee,Steven P. Nolan +2 more
- 01 Jan 2001
TL;DR: In this article, the synthesis and characterization of the PF6 and diazabutadienes complexes were reported. But their activity was not compared with that of the related cationic iridium(I) species.
147
Recent progress in phosphorescent Ir(III) complexes for nondoped organic light-emitting diodes
TL;DR: In this paper, the authors provide an update on recent advances in the development of Ir(III) complexes and their applications in nondoped PHOLEDs fabricated by both vacuum deposition and solution-processed approaches.
89
A simple 1H NMR method for determining the σ-donor properties of N-heterocyclic carbenes
TL;DR: In this article, the σ-donor properties of NHC ligands were measured using a simple 1H NMR measurement of ligand precursors to determine the selectivity and reactivity in transition-metal-catalysis.
85
BIAN-NHC Ligands in Transition-Metal-Catalysis: A Perfect Union of Sterically Encumbered, Electronically Tunable N-Heterocyclic Carbenes?
TL;DR: BIAN-NHC ligands take advantage of the stronger σσ-donation, lower lying LUMO orbitals, the presence of an extended ππ-system, and the rigid backbone that pushes the N-wingtip substituents closer to the metal center by buttressing effect, resulting in a significantly improved control of the catalytic center and enhanced air-stability of BIAN- NHC-metal complexes at low oxidation state.
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References
Iridium-catalyzed addition of aroyl chlorides and aliphatic acid chlorides to terminal alkynes.
TL;DR: Stoichiometric reactions of active iridium catalysts with aroyl chlorides and aliphatic acid chlorides are carried out to gain insights into the reaction mechanisms.
57
Selective catalytic oxidation of sugar alcohols to lactic acid
TL;DR: In this article, the authors reported the efficient and selective conversion of sorbitol, xylitol and other polyols into lactic acid as the major product through homogeneous iridium-NHC catalyzed dehydrogenative processes.
56
Base-Free Dynamic Kinetic Resolution of Secondary Alcohols Using “Piano-Stool” Complexes of N-Heterocyclic Carbenes
TL;DR: In this paper, the authors showed that rhodium and iridium catalysts can be used as catalysts for racemization in the one-pot chemoenzymic dynamic kinetic resolution (DKR) of secondary alcohols.
56
Electropolymerization of an N-heterocyclic carbene-gold(I) complex.
TL;DR: The first example of a polymer in which each monomer contains an N-heterocyclic carbene (NHC) orthogonally connected to its main chain is reported, which was characterized via electrochemical studies as well as X-ray photoelectron and UV-vis spectroscopy.
55
Practically convenient and industrially-aligned methods for iridium-catalysed hydrogen isotope exchange processes
Alison Ruth Cochrane,C Idziak,William J. Kerr,Bhaskar Mondal,Laura C. Paterson,Tell Tuttle,Shalini Andersson,Göran N. Nilsson +7 more
TL;DR: The use of alternative solvents in the iridium-catalysed hydrogen isotope exchange reaction with developing phosphine/NHC Ir(I) complexes has identified reaction media which are more widely applicable and industrially acceptable than the commonly employed chlorinated solvent, dichloromethane.