Results 71 to 80 of about 8,786 (262)

N-Heterocyclic Carbenes Reduce and Functionalize Copper Oxide Surfaces in a Single Step [PDF]

, 2020
Benzimidazolium hydrogen carbonate salts have been shown to act as N-heterocyclic carbene precursors which can remove oxide from copper oxide surfaces and functionalize the resulting metallic surfaces in a single step.
J. Daniel, Padmos, J. Hugh, Horton, Christopher J., Baddeley, Paul A., Lummis, Alex, Veinot, Mina R., Narouz, abrar, al-rashed, Cathleen, Crudden   +7 more
core   +1 more source

Nickel-catalysed direct C2-arylation of N-heterocyclic carbenes [PDF]

, 2017
Ho NKT, Neumann B, Stammler H-G, et al. Nickel-catalysed direct C2-arylation of N-heterocyclic carbenes. DALTON TRANSACTIONS. 2017;46(36):12027-12031.A highly efficient nickel catalysed method for the direct C2-arylation of N-heterocyclic carbenes (NHCs)
Hans-Georg Stammler, Ataualpa A. C. Braga, Beate Neumann, Stammler, Hans-Georg, Watanabe, Daniel G., Vitor H. Menezes da Silva, Rajendra S. Ghadwal, Daniel G. Watanabe, Ho, Nga Kim T., Neumann, Beate, Braga, Ataualpa A. C., Menezes da Silva, Vitor H., Ghadwal, Rajendra ; https://orcid.org/, Nga Kim T. Ho   +13 more
core   +1 more source

Proton Affinities of Phosphines versus N-Heterocyclic Carbenes [PDF]

, 2016
The gas-phase proton affinities of unusually basic phosphines and N-heterocyclic carbenes are compared and contrasted both computationally and ...
Ill Yang (2254483), Min Liu (45756), Jeehiun K. Lee (1575025), Brian Buckley (137185)   +3 more
core   +1 more source

Nickel(II) Complexes of N-Heterocyclic Carbenes^† [PDF]

, 2016
Nickel(II) complexes with N-heterocyclic carbenes are accessible through substitution of triphenylphosphine in NiX2(PPh3)2 (X = Cl, Br) by the free carbenes or by in situ deprotonation of the corresponding azolium salts with Ni(OAc)2 as the starting ...
Wolfgang A. Herrmann (1392130), Michael Spiegler (2973801), Gisela Gerstberger (3084210)   +2 more
core   +1 more source

The promise of N-heterocyclic carbenes to capture and valorize carbon dioxide

Sustainable Chemistry for Climate Action, 2023
With increasing environmental concerns due to the anthropologic emissions of greenhouse gasses, especially carbon dioxide (CO2), the development of new technologies to capture the latter is of great public value. While amino-containing materials excel in
Pierre Stiernet, Bo Pang, Daniel Taton, Jiayin Yuan   +3 more
doaj   +1 more source

Ligand Properties of N-Heterocyclic and Bertrand Carbenes: A Density Functional Study [PDF]

, 2012
[[abstract]]In order to probe the ligand properties we have examined a series of Cr(CO)5L and Ni(CO)3L complexes using density functional theory (DFT). The ligands included in our study are N-heterocyclic carbenes (NHCs) and Bertrand-type carbenes.
Lai, C. L. ; Guo, W. H. ; Lee, M. T. ; Hu, Ching-Han
core  

Photogenerated Oxetanes as a Gateway to Uphill Cyclopropanation

Angewandte Chemie International Edition, EarlyView.
An atom‐economical route to densely functionalized cyclopropanes from furans and photochemically activated aldehydes is enabled by a unique oxetane‐to‐cyclopropane rearrangement. These cyclopropanes can be used to access complex bioactive scaffolds and serve as a platform for asymmetric cyclopropane synthesis.
Tim Köglmeier, Thomas J. Tiefel, Oliver Reiser   +2 more
wiley   +1 more source

Nature of Bonding in Donor-Acceptor Interactions Exemplified by Complexes of N-Heterocyclic Carbenes with 1,2,5-Telluradiazoles [PDF]

, 2017
Comprehensive structural, spectroscopic, and quantum chemical analyses of new donor-acceptor complexes between N-heterocyclic carbenes and 1,2,5-telluradiazoles and a comparison with previously known complexes involving tellurenyl cations showed that the
Sergey N. Konchenko, Zibarev, Andrey V., Smolentsev, Anton I., Kleemiss, Florian, Salnikov, Georgy E., Denis S. Grigoriev, Simon Grabowsky, Lucia M. Lee, Nikolay A. Pushkarevsky, Andrey V. Zibarev, Anton I. Smolentsev, Jens Beckmann, Lee, Lucia M., Vargas-Baca, Ignacio, Beckmann, Jens, Georgy E. Salnikov, Petrov, Pavel A., Grigoriev, Denis S., Florian Kleemiss, Pushkarevsky, Nikolay A., Konchenko, Sergey N., Grabowsky, Simon, Ignacio Vargas-Baca, Pavel A. Petrov   +23 more
core   +1 more source

Ruthenium indenylidene "1st generation" olefin metathesis catalysts containing triisopropyl phosphite [PDF]

, 2015
The authors gratefully acknowledge the Royal Society (University Research Fellowship to CSJC) and the EC (CP-FP 211468-2 EUMET) for funding.The reaction of triisopropyl phosphite with phosphine-based indenylidene pre-catalysts affords “1st generation ...
Cazin, Catherine, Stefano Guidone, Slawin, Alexandra MZ, Slawin, Alexandra Martha Zoya, Nahra, Fady, Cazin, Catherine S.J., Guidone, Stefano, Catherine S. J. Cazin, Fady Nahra, Alexandra M. Z. Slawin   +9 more
core   +1 more source

A Facile Route to C2-Substituted Imidazolium Ionic Liquids

Molecules, 2009
A convenient route for the preparation of C2-substituted imidazolium ionic liquids is reported. This method involves the alkylation of N-heterocyclic carbenes, which are readily generated from the C2-unsubstituted imidazolium ionic liquids. It works well
Scott T. Handy, Elliot Ennis
doaj   +1 more source