Results 21 to 30 of about 7,841,789 (286)
Molecules, 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
Remote steric control for undirected meta-selective C–H activation of arenes
Science, 2022 Regioselective functionalization of arenes remains a challenging problem in organic synthesis. Steric interactions are often used to block sites adjacent to a given substituent, but they do not distinguish the remaining remote sites. We report a strategy
Boobalan Ramadoss +3 more
semanticscholar +1 more source
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
N-Heterocyclic Carbene Complexes in C-H Activation Reactions.
Chemical Reviews, 2020 In this contribution, we provide a comprehensive overview of C-H activation methods promoted by NHC-transition metal complexes, covering the literature since 2002 (the year of the first report on metal-NHC-catalyzed C-H activation) through June 2019 ...
Qun Zhao +3 more
semanticscholar +1 more source
Organocatalytic C–H activation reactions
Beilstein 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
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
Iridium complexes bearing a PNP ligand, favoring facile C(sp^3)–H bond cleavage [PDF]
, 2011 Hydrogen iodide is lost upon reaction of PNP with IrI_3, where PNP = 2,6-bis-(di-t-butylphosphinomethyl)pyridine to give crystallographically characterized Ir(PNP)*(I)_2, which reacts with H_2 to give Ir(PNP)(H)(I)_2.
Goddard, William A., III +4 more
core +1 more source
Journal of the American Chemical Society, 2020 The ability to effectively differentiate between chemically inequivalent, yet highly similar, C-H bonds in a given molecule remains a fundamental challenge in organic chemistry.
Guangrong Meng +6 more
semanticscholar +1 more source
Ruthenium-catalyzed C–H activation of thioxanthones
Beilstein 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
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