Results 21 to 30 of about 3,838,786 (204)
Direct Aniline Formation with Benzene and Hydroxylamine
Chemistry, 2023 A single-step method for aniline formation was examined. Using a vanadate catalyst with an iron oxide co-catalyst and hydroxylamine hydrochloride as the amine source, an up to 90% yield of aniline was obtained with high selectivity.
Ningyu Liu +2 more
doaj +1 more source
Formation of Bicyclic Pyrroles from the Catalytic Coupling Reaction of 2,5-disubstituted Pyrroles with Terminal Alkynes, Involving the Activation of Multiple C-H bonds [PDF]
, 2008 Substituted bicyclic pyrroles are produced directly from the coupling reaction of 2,5-disubstituted pyrroles with terminal alkynes, involving the activation of multiple C–H bonds and regioselective ...
Yi, Chase S., Zhang, Jie
core +2 more sources
Ruthenium-Catalyzed Oxidative Synthesis of N-(2-triazine)indoles by C-H Activation
Molecules, 2023 1,3,5 triazines, especially indole functionalized triazine derivatives, exhibit excellent activities, such as anti-tumor, antibacterial, and anti-inflammatory activities.
Ming Zeng +7 more
doaj +1 more source
Hydroarylations by cobalt-catalyzed C–H activation
Beilstein Journal of Organic Chemistry, 2018 As an earth-abundant first-row transition metal, cobalt catalysts offer a broad range of economical methods for organic transformations via C–H activation.
Rajagopal Santhoshkumar +1 more
doaj +1 more source
Competitive Activation of a Methyl C−H Bond of Dimethylformamide at an Iridium Center [PDF]
, 2009 During the synthesis of [AsPh_4][Ir(CO)_2I_3Me] by refluxing IrCl_3·3H_2O in DMF (DMF = dimethylformamide) in the presence of aqueous HCl, followed by sequential treatment with [AsPh_4]Cl, NaI, and methyl iodide and finally recrystallization from ...
Bercaw, John E. +4 more
core +1 more source
Molecules, 2021 The regioselective C-H functionalization of the five-membered ring of the 6,5-fused heterocyclic systems is nowadays well documented due to its high reactivity compared to the six-membered ring.
Soukaina Faarasse +3 more
doaj +1 more source
Tracking C–H activation with orbital resolution
Science, 2023 Transition metal reactivity toward carbon–hydrogen (C–H) bonds hinges on the interplay of electron donation and withdrawal at the metal center. Manipulating this reactivity in a controlled way is difficult because the hypothesized metal-alkane charge-transfer interactions are challenging to access experimentally. Using time-resolved x-ray spectroscopy,
Raphael M. Jay +23 more
openaire +2 more sources
Beryllium-centred C–H activation of benzene
Chemical Communications, 2023 Lithium or sodium reduction of [SiNDippBe] in benzene, provides the organoberyllate products, [{SiNDippBePh}M] (M = Li or Na).
Kyle G. Pearce +2 more
openaire +3 more sources
Photoinduced homolytic C–H activation in N-(4-homoadamantyl)phthalimide
Beilstein Journal of Organic Chemistry, 2011 N-(4-homoadamantyl)phthalimide (5) on excitation and population of the triplet excited state underwent intramolecular H-abstractions and gave products 6 and 7.
Nikola Cindro +4 more
doaj +1 more source
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