Results 11 to 20 of about 2,071,741 (220)

Recent Developments in C–H Activation for Materials Science in the Center for Selective C–H Activation

open access: yesMolecules, 2018
Organic electronics is a rapidly growing field driven in large part by the synthesis of π-conjugated molecules and polymers. Traditional aryl cross-coupling reactions such as the Stille and Suzuki have been used extensively in the synthesis of &pi ...
Junxiang Zhang   +5 more
doaj   +1 more source

Organocatalytic C–H activation reactions

open access: yesBeilstein Journal of Organic Chemistry, 2012
Organocatalytic C–H activation reactions have recently been developed besides the traditional metal-catalysed C–H activation reactions. The recent non-asymmetric and asymmetric C–H activation reactions mediated by organocatalysts are discussed in this ...
Subhas Chandra Pan
doaj   +1 more source

Direct Aniline Formation with Benzene and Hydroxylamine

open access: yesChemistry, 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

Hydroarylations by cobalt-catalyzed C–H activation

open access: yesBeilstein 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

Ruthenium-Catalyzed Oxidative Synthesis of N-(2-triazine)indoles by C-H Activation

open access: yesMolecules, 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

Ruthenium-catalyzed C–H activation of thioxanthones

open access: yesBeilstein Journal of Organic Chemistry, 2015
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

Regioselective C-H Functionalization of the Six-Membered Ring of the 6,5-Fused Heterocyclic Systems: An Overview

open access: yesMolecules, 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

Photoinduced homolytic C–H activation in N-(4-homoadamantyl)phthalimide

open access: yesBeilstein 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

Enantioselective Rhodium-Catalyzed C–C Bond Activations

open access: yesCHIMIA, 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

Rh(III)-catalyzed directed C–H bond amidation of ferrocenes with isocyanates

open access: yesBeilstein 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

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