Results 31 to 40 of about 3,879,991 (283)
Hydrogen Motion in Magnesium Hydride by NMR [PDF]
, 2008 In coarse-grained MgH2, the diffusive motion of hydrogen remains too slow (
Bormann, Rüdiger +11 more
core +1 more source
Enantioselective Rhodium-Catalyzed C–C Bond Activations
CHIMIA, 2010 The catalytic activation of carbon–carbon single bonds represents a major challenge in organometallic chemistry. Strained ring substrates occupy in this respect a privileged role as their inherent ring strain facilitates the desired metal ...
Tobias Seiser, Nicolai Cramer
doaj +1 more source
Carboxylic Solvents and O-Donor Ligand Effects on CH Activation by Pt(II) [PDF]
, 2006 We report on the design of more efficient C−H activation catalysts based on DFT calculations. The first examples of well-defined, N,O-donor ligated platinum complexes that are competent for fast C−H activation are detailed.
Goddard, William A., III +5 more
core +1 more source
Rh(III)-catalyzed directed C–H bond amidation of ferrocenes with isocyanates
Beilstein Journal of Organic Chemistry, 2012 [RhCp*(OAc)2(H2O)] [Cp* = pentamethylcyclopentadienyl] catalyzed the C–H bond amidation of ferrocenes possessing directing groups with isocyanates in the presence of 2 equiv/Rh of HBF4·OEt2.
Satoshi Takebayashi +3 more
doaj +1 more source
On the Use of Iron in Organic Chemistry
Molecules, 2020 Transition metal catalysis in modern organic synthesis has largely focused on noble transition metals like palladium, platinum and ruthenium. The toxicity and low abundance of these metals, however, has led to a rising focus on the development of the ...
Arnar Guðmundsson, Jan-E. Bäckvall
doaj +1 more source
Divergent isoindolinone synthesis through palladium-catalyzed isocyanide bridging C–H activation
Cell Reports Physical Science, 2022 Summary: The formation of thermodynamically accessible metallacycle is crucial to achieve site-selective C–H bond activation. Here, we report an isocyanide-bridging C–H activation through the formation of a five-membered palladacycle. As such, a proximal
Fulin Zhang +6 more
doaj +1 more source
Electrochemical Cobalt‐Catalyzed C−H Activation
Chemistry – A European Journal, 2018 AbstractCarbon–heteroatom bonds represent omnipresent structural motifs of the vast majority of functionalized materials and bioactive compounds. C−H activation has emerged as arguably the most efficient strategy to construct C−Het bonds. Despite of major advances, these C−H transformations were largely dominated by precious transition metal catalysts,
Nicolas Sauermann +2 more
openaire +3 more sources
Nature Communications, 2019 Palladium-catalyzed late-stage diversification of structurally complex peptides has major shortcomings. Here, the authors developed a ruthenium-catalyzed C–H alkylations of peptides allowing for fluorescence labeling, late-stage diversifications and ...
Alexandra Schischko +5 more
doaj +1 more source
Chelated Ruthenium Catalysts for Z-Selective Olefin Metathesis [PDF]
, 2011 We report the development of ruthenium-based metathesis catalysts with chelating N-heterocyclic carbene (NHC) ligands that catalyze highly Z-selective olefin metathesis.
Endo, Koji, Grubbs, Robert H.
core +3 more sources
Bioactive glass-ceramic scaffolds from novel 'inorganic gel casting' and sinter-crystallization [PDF]
, 2017 Highly porous wollastonite-diopside glass-ceramics have been successfully obtained by a new gel-casting technique. The gelation of an aqueous slurry of glass powders was not achieved according to the polymerization of an organic monomer, but as the ...
Bernardo, Enrico +5 more
core +2 more sources