N-HETEROCYCLIC CARBENE
N -Heterocyclic Carbene-Platinum Complexes Featuring an Anthracenyl Moiety: Anti-Cancer Activity and DNA Interaction.
... of N-heterocyclic carbene ligands offers new opportunities for biological applications in part thanks to their ease of derivatization and the high stability of their corresponding metal ...[37,38], ...
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Enantioselective N heterocyclic carbene catalyzed formal [3+2] cycloaddition using α aroyloxyaldehydes and oxaziridines
... asymmetric N-heterocyclic carbene catalyzed formal [3+2] cycloaddition has been developed using a -aroyloxyaldehydes and ...products. N-Detosylation of the oxazolidin-4-one products was shown ...
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Coinage Metal Silylphosphido Complexes Stabilized by N-Heterocyclic Carbene Ligands
... complexes are promising candidates as precursors for the preparation of ternary metal- phosphide clusters using solution-phase methods and access to different “bottleable” rea- gents is desirable. In this report, the ...
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Fine-tuning the efficiency of para-hydrogen-induced hyperpolarization by rational N-heterocyclic carbene design
... Iridium N-heterocyclic carbene (NHC) complexes catalyze the para-hydrogen-induced hyperpolarization process, Signal Amplification by Reversible Exchange ...
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Synthesis and characterisation of an N-heterocyclic carbene with spatially-defined steric impact
... flexible’ N-heterocyclic carbene (“IPaul”) is reported. This carbene has spatially-defined steric impact; steric maps show that two quadrants are very bulky while the other two are quite ...
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Ruthenium Complexes Bearing N-Heterocyclic Carbene (NHC) Ligands123-137
... the activity of these types of compounds in metathesis reactions can be finely tuned by appro- priate structural changes in both the N-heterocyclic carbene and the chelating iso- propoxybenzylidene ...
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Fine-tuning the efficiency of para-hydrogen-induced hyperpolarization by rational N-heterocyclic carbene design
... Iridium N-heterocyclic carbene (NHC) complexes catalyse the para-hydrogen-induced hyperpolarization process, Signal Ampli fi cation by Reversible Exchange ...
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NEWLY DEVELOPED ANCHORED Ru(II) N HETEROCYCLIC CARBENE COMPLEX AND ITS APPLICATIONS
... stable toward decomposition in aqueous solvent in a wide range pH and up to a relatively high temperature (80 o C). This catalyst was active and selective in the hydrogenation of alkenes, oxo compounds, and the redox ...
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Tethered N-Heterocyclic Carbene-Carboranes: Unique Ligands that Exhibit Unprecedented and Versatile Coordination Modes at Rhodium
... an N-heterocyclic carbene tethered with two isomeric nido -dicarbaundecaborane dianions, a neutral closo -dicarbadodecaborane or a closo - dicarbadodecaborane anion are ...
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BIOLOGICAL ACTIVITY EVALUATION OF NOVEL N HETEROCYCLIC CARBENE PRECURSORS
... Department of Chemistry 2 , Faculty of Arts and Sciences, Inönü University, 44280 Malatya, Turkey. ABSTRACT: Five novel benzimidazolium salts were synthesized as N-heterocyclic carbene (NHC) ...
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Homogeneous gold catalysts : development of applications for gold(I) catalysts bearing N heterocyclic carbene ligands
... of N-heterocyclic carbene complexes were originally reported by Wanzlick 1 and Öfele 2 in 1968, it was not until 1991 and the isolation of a stable NHC by Arduengo 3 that the area burgeoned into the ...
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Light stable silver N Heterocyclic carbene catalysts for the alkynylation of ketones in air
... = N-heterocyclic carbene) systems have become catalysts of choice, presenting outstanding reactivity and ...= N,N’-bis{2,4,6-(trimethyl)phenyl} imidazol-2-ylidene) in the presence of ...
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Electrochemical flow-reactor for expedient synthesis of copper-N-heterocyclic carbene complexes
... An electrochemical flow-cell for highly efficient and selective generation of Cu I -N-heterocyclic carbene complexes under neutral and ambient conditions is reported. The feasibility of the flow-cell ...
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Backbone tuning in indenylidene ruthenium complexes bearing an unsaturated N heterocyclic carbene
... Less sterically demanding NHCs are typically used for the syn- thesis of highly encumbered olefins [18]. Recent studies have shown that backbone substitution in saturated NHCs greatly improves catalyst stability by ...
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The Development of Water Soluble Olefin Metathesis Catalysts Containing an N Heterocyclic Carbene Ligand
... Materials. All deuterated solvents were purchased from Cambridge Isotope Laboratories. Deuterated dichloromethane was dried over 4 Å molecular sieves, and deuterated methanol was dried over calcium sulfate. Deuterated ...
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Synthesis and reactivity studies of mono and diaurated species bearing N heterocyclic carbene ligands
... [Au(tht)Cl] (tht = tetrahydrothiophene), with a free carbene. 82a Although both routes have proven to be highly successful for the synthesis of a wide range of Au-NHC complexes, there are several drawbacks ...
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Evaluation of an olefin metathesis pre catalyst with a bulky and electron rich N heterocyclic carbene
... measured (Table 2); and reaction with butyl vinyl ether which irreversibly forms a metathesis- inactive Fischer carbene species 37 under conditions where phosphine dissociation is rate-determining (Table 3). 15 ...
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Coordination chemistry of N heterocyclic carbene and thione functionalised calix[4]arene ligands
... 1,3-substituted N-alkylimidazolium calix[4]arenes resulted in the reliable synthesis of satisfactory quantities of pro-ligand ...free carbene 2a was readily formed in solution by addition of strong bases, ...
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Evaluation of an olefin metathesis pre-catalyst with a bulky and electron-rich N-heterocyclic carbene
... NHC N-aryl substituents and the ruthenium carbene fragment have been postulated to be important to the electronic structure and initiation behaviour of metathesis ...
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N-heterocyclic carbene ligands for nickel ethylene polymerization catalysts: toward the incorporation of polar comonomers
... Based on the crystallographic structure of A1.12, the distance between the imine N and Ag atoms is 2.836 Å. Although the imine is oriented such that the lone electron pair on N is directed toward the Ag ...
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