Results 21 to 30 of about 2,063,218 (218)
Direct Aniline Formation with Benzene and Hydroxylamine
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
Ruthenium-catalyzed C–H activation of thioxanthones
Thioxanthones – being readily available in one step from thiosalicylic acid and arenes – were used in ruthenium-catalyzed C–H-activation reaction to produce 1-mono- or 1,8-disubstituted thioxanthones in good to excellent yields.
Danny Wagner, Stefan Bräse
doaj +1 more source
Hydroarylations by cobalt-catalyzed C–H activation
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
Ruthenium-Catalyzed Oxidative Synthesis of N-(2-triazine)indoles by C-H Activation
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
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
Photoinduced homolytic C–H activation in N-(4-homoadamantyl)phthalimide
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
Enantioselective Rhodium-Catalyzed C–C Bond Activations
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
Rh(III)-catalyzed directed C–H bond amidation of ferrocenes with isocyanates
[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
Divergent isoindolinone synthesis through palladium-catalyzed isocyanide bridging C–H activation
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
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

