Results 101 to 110 of about 14,653 (264)

Bidentate N,O-prolinate ruthenium benzylidene catalyst highly active in RCM of disubstituted dienes [PDF]

, 2007
The synthesis of a bidentate N,O-prolinate ruthenium benzylidene from commercially available starting materials and its activity in ring-closing metathesis of functionalized disubstituted dienes at 30 °C is ...
Grubbs, Robert H., Samec, Joseph S. M.
core   +3 more sources

Backbone tuning in indenylidene–ruthenium complexes bearing an unsaturated N-heterocyclic carbene

Beilstein Journal of Organic Chemistry, 2010
The steric and electronic influence of backbone substitution in IMes-based (IMes = 1,3-bis(2,4,6-trimethylphenyl)imidazol-2-ylidene) N-heterocyclic carbenes (NHC) was probed by synthesizing the [RhCl(CO)2(NHC)] series of complexes to quantify ...
César A. Urbina-Blanco, Xavier Bantreil, Hervé Clavier, Alexandra M. Z. Slawin, Steven P. Nolan   +4 more
doaj   +1 more source

NHI- and NHC-Supported Al(III) Hydrides for Amine–Borane Dehydrocoupling Catalysis

Inorganics, 2019
The catalytic dehydrocoupling of amine−boranes has recently received a great deal of attention due to its potential in hydrogen storage applications.
Catherine Weetman, Nozomi Ito, Masafumi Unno, Franziska Hanusch, Shigeyoshi Inoue   +4 more
doaj   +1 more source

Synthesis And Anticancer Studies Of Methylene Bridged N-Heterocyclic Carbene Silver(i) And Palladium(ii) Complexes Derived From Imidazol-2-Ylidenes [PDF]

, 2015
Tesis ini menerangkan sintesis, pencirian (1H, 13C NMR, CHN, takat lebur) dan aktiviti kanser bagi titian metil garam bis-imidazolium (1-4) dan kompleks perak(I)- N-heterosiklik karbena (NHC).
Hasanudin, Noorhafizah
core  

Geminal Difunctionalization of Ketones via C─S Bond Insertion of Photogenerated Donor–Donor Diazo Compounds

Angewandte Chemie International Edition, EarlyView.
Geminal difunctionalization of readily available building blocks provides rapid access to molecular complexity. This work introduces a strategy for installing two distinct functional groups on a carbonyl carbon by transforming it into a donor–donor diazo compound, enabling both batch and flow applications with broad solvent compatibility.
Vincent George, Aryaman Pattanaik, Daniel Maddox, Lukas M. Sigmund, Giovanna Mejia, Sara Pahlén, Simon O. Angerer, Maria Schmoll, Lisa Marie Schneider, Nidhal Selmi, Mikhail Kabeshov, Giulia Bergonzini, Julia Rehbein, Burkhard König   +13 more
wiley   +1 more source

2-Azidoimidazolium Ions Captured by N-Heterocyclic Carbenes: Azole-Substituted Triazatrimethine Cyanines

Crystals, 2016
1,3-Disubstituted 2-azidoimidazolium salts (substituents = methyl, methoxy; anion = PF6) reacted with N-heterocyclic carbenes to yield yellow 2-(1-(azolinylidene)triazen-3-yl)-1,3-R2-imidazolium salts (azole = 1,3-dimethylimidazole, 1,3 ...
Simone Haslinger, Gerhard Laus, Volker Kahlenberg, Klaus Wurst, Thomas Bechtold, Stefan Vergeiner, Herwig Schottenberger   +6 more
doaj   +1 more source

New Methodologies in Transition Metal-Mediated (11C)Radiolabelling for Positron Emission Tomography

, 2011
This thesis focuses on the requirement for new methodologies to incorporate 11C into biologically active compounds for Positron Emission Tomography (PET).
Jennings, Lucy, Jennings, Lucy
core   +1 more source

Carbenic nitrile imines: Properties and reactivity [PDF]

, 2014
Structures and properties of nitrile imines were investigated computationally at B3LYP and CCSD(T) levels. Whereas NBO analysis at the B3LYP DFT level invariably predicts a propargylic electronic structure, CCSD(T) calculations permit a clear distinction
Arthur M. P., Bertrand G., Bourissou D., Braida B., Bégué D., Bégué D., Bégué D., Bégué D., Caramella P., Cargnoni F., Curt Wentrup, Didier Bégué, Fauré J.-L., Frija L., Goedecke C., Gohaud N., Gohaud N., Gomez-Zavaglia A., Gomez-Zavaglia A., Kanemasa S., Kawauchi S., Lucero P. L., Maier G., Martin D., Mawhinney R. C., Mawhinney R. C., Mawhinney R. C., Muchall H. M., Padwa A., Puzzarini C., Sharp J. T., Shawali A. S., Tidwell T. T., Veedu R. N., Wentrup C., Wentrup C., Wong M. W., Zheng S.-L.   +37 more
core   +1 more source

Rearrangement of N-Heterocylic Carbenes Involving Heterocycle Cleavage [PDF]

, 2006
In two similar but unrelated cases, a novel type of ring-opening reaction of N-heterocyclic carbenes (NHCs) was observed.
Grubbs, Robert H., Ritter, Tobias, Waltman, Andrew W.   +2 more
core   +1 more source

N‐heterocyclic carbene‐based tetradentate Pt(II) phosphors for blue organic light‐emitting diodes: Molecular design, photophysics, and device performance

Bulletin of the Korean Chemical Society, EarlyView.
Structure‐oriented design of NHC‐based tetradentate Pt(II) complexes offers narrowband deep‐blue emission for OLEDs. This review highlights how steric shielding and electronic modulation regulate intermolecular interactions, excited‐state dynamics, and device performance, outlining design principles and outlines toward efficient and durable blue ...
Mingi Kim, Chan Hee Ryu, Kang Mun Lee
wiley   +1 more source