[PDF] Top 20 Synthesis and characterisation of an N-heterocyclic carbene with spatially-defined steric impact
Has 10000 "Synthesis and characterisation of an N-heterocyclic carbene with spatially-defined steric impact" found on our website. Below are the top 20 most common "Synthesis and characterisation of an N-heterocyclic carbene with spatially-defined steric impact".
Synthesis and characterisation of an N-heterocyclic carbene with spatially-defined steric impact
... The synthesis and co-ordination chemistry of a new ‘bulky yet flexible’ N-heterocyclic carbene (“IPaul”) is ...This carbene has spatially-defined steric ... See full document
9
Synthesis and Characterisation of N-Heterocyclic Carbene Adducts of PI Cations
... accomplished at room temperature. In contrast, the use of an analogous reaction protocol to obtain cyclic bis-NHC adducts has proven to be not as straightforward. The problem with the bis-NHC proligands is their ... See full document
106
Evaluation of an olefin metathesis pre catalyst with a bulky and electron rich N heterocyclic carbene
... minimal steric changes, might affect the catalytic activity of the resulting ...The synthesis and characterisation of SIPr OMe have been previously reported by us; 23, 28 it was found that it ... See full document
15
Evaluation of an olefin metathesis pre-catalyst with a bulky and electron-rich N-heterocyclic carbene
... minimal steric changes, might affect the catalytic activity of the resulting ...The synthesis and characterisation of SIPr OMe have been previously reported by us; 23, 28 it was found that it ... See full document
65
N-Heterocyclic Carbene-PEI Platinum Complexes Inducing Human Cancer Cell Death: Polymer Carrier Impact
... to mitochondrial dysfunction. Herein, we wish to report the synthesis and in vitro activities of such conjugates where the polymer type (linear or branched) and size (low Mw to high Mw) were varied. We also ... See full document
12
N-heterocyclic germylenes : structural characterisation of some heavy analogues of the ubiquitous N-heterocyclic carbenes
... the N-Ge-N bond angle is ...the N-Ge-N bond angle is ...the steric strain within the 5-membered ring will be greater for 2 than for ...have N-X-N angles that are fairly ... See full document
9
Backbone tuning in indenylidene ruthenium complexes bearing an unsaturated N heterocyclic carbene
... Herein, we present the synthesis and characterization of three new ruthenium–indenylidene catalysts and their performance in benchmark metathesis transformations. In order to quantify the Tolman electronic ... See full document
7
Determining the Reactivity and Oxidation Intermediates of an Allylnickel (N-Heterocyclic Carbene) Chloride Complex
... INOVA 600 MHz or Varian INOVA 400 MHz spectrometer. 1 H NMR spectra were referenced using residual solvent signals to tetramethylsilane at 0 ppm. Oxidation reactions were analyzed using an Agilent 7890A GC-FID with an ... See full document
141
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 ... See full document
6
Copper N heterocyclic carbene complexes as active catalysts for the synthesis of 2 substituted oxazolines from nitriles and aminoalcohols
... the synthesis of 2-substituted thiazolines using only a cat- alytic amount of ...the synthesis of 2-substituted oxazolines, using benzonitrile 1a and ethanolamine 2a as model substrates, we found that a ... See full document
14
N Heterocyclic carbene copper(I) catalysed N methylation of amines using CO2
... 2 (a) H. T. Clarke, H. B. Gillespie and S. Z. Weisshaus, J. Am. Chem. Soc., 1933, 55, 4571; (b) E. Farkas and C. J. Sunman, J. Org. Chem., 1985, 50, 1110; (c) J. R. Harding, J. R. Jones, S. Y. Lu and R. Wood, Tetrahedron ... See full document
7
Ruthenium Complexes Bearing N-Heterocyclic Carbene (NHC) Ligands183-188
... and steric varia- tions on NHCs will still be necessary for further progress in this ...Chiral N-heterocyclic car- bene modules open convenient ways of creating catalytic systems of high synthetic ... See full document
6
Synthesis and Characterization of N Heterocyclic Carbene and their Complexes with Ni (II) and Studying their Biological Activity against Escherichia coli
... of N-heterocyclic carbenes (NHCs) and their complexes, New imidazolium salts (DII, DTI) and N-heterocyclic carbine complexes were designed (Ni-NHC), synthesized and structurally characterized ... See full document
8
Synthesis of palladium(II)-N-heterocyclic carbene via transmetaliation of silver(I) complex and its catalytic activity in epoxidation of alkene
... dichloromethane/methanol afforded the bis-NHC palladium(II) complexes in good yield (48.3-76.4%) via carbene transfer method. All new complexes were fully characterized by various techniques such as CHN analysis, ... See full document
46
Synthesis, characterization and catalytic activity of stable [(NHC)H][ZnXY2] (NHC = N Heterocyclic carbene, X, Y = Cl, Br) species
... Compounds 1-3 are considered analogues to the metallate intermediates obtained during the synthesis of Au(I)- and Cu(I)-NHC complexes via the reaction of NHC salts with gold and copper precursors in the absence of ... See full document
19
The Development of Water Soluble Olefin Metathesis Catalysts Containing an N Heterocyclic Carbene Ligand
... glove box, tris(dibenzylideneacetone)dipalladium(0) (14.1 mg, 0.015 mmol, 0.10 equiv), 2-(dicyclohexylphosphino)-2'-(N,N-dimethylamino)biphenyl (10.0 mg, 0.025 mmol, 0.17 equiv), and sodium tert-butoxide ... See full document
230
Fine-tuning the efficiency of para-hydrogen-induced hyperpolarization by rational N-heterocyclic carbene design
... Varying the ortho-position substituent from H → Me → Et → iPr (2 → 3 → 4 → 5) has little influence on the TEP in accordance with a small inductive change. Similarly, introduction of methyl groups (6 and 7) into the ... See full document
12
Fine-tuning the efficiency of para-hydrogen-induced hyperpolarization by rational N-heterocyclic carbene design
... Previous studies have shown that aromatic NHC ligands effective mediators of the SABRE process, whereas alkyl NHC's perform poorly. 13, 14 This effect could indicate beneficial π-face interactions 33, 34 within the ... See full document
26
Coordination chemistry of N heterocyclic carbene and thione functionalised calix[4]arene ligands
... The development of calix[4]arene scaffolds bearing 1,3-fuctionalised donor groups has been identified as a pathway to the formation of chelating NHC ligand systems. With a view of exploiting the flexible and ... See full document
167
Ruthenium Complexes Bearing N-Heterocyclic Carbene (NHC) Ligands123-137
... however, the last two complexes give rise to higher catalytic activities. This finding indicates that subtle steric effects can be considered in NHC ligands to tune the catalytic performances much better than with ... See full document
15
Related subjects