Results 11 to 20 of about 28,139,687 (262)

Lowering the C-H Bond Activation Barrier of Methane Using SAC@Cu(111): A Periodic DFT Investigations [PDF]

open access: yes, 2021
Methane has long captured the world\u27s spotlight for being the simplest and yet one of the most notorious hydrocarbon. Exploring its potential to be converted into value added products has raised a compelling interest.
Meema, Bhati   +2 more
core   +2 more sources

C-H Bond Activation via Concerted Metalation-Deprotonation at a Palladium(III) Center [PDF]

open access: yes, 2022
Herein we report the direct observation of C-H bond activation at an isolated mononuclear Pd(III) center. The oxidation of the Pd(II) complex (MeN4)PdII(neophyl)Cl (neophyl = -CH2C(CH3)2Ph; MeN4 = N,N′-di-tert-butyl-2,11-diaza[3.3](2,6)pyridinophane ...
Dae Young, Bae   +3 more
core   +2 more sources

δ-C(sp3)H Activation of Free Alcohols Enabled by Rationally Designed H-Bond-Acceptor Ligands [PDF]

open access: yes, 2023
The ability to employ a wide range of native substrates is essential for the broad application of transition-metal-catalyzed C–H activation. Recent advances have made native carboxylic acids, ketones, and amines amenable to C(sp3)–H activation, but ...
Jin-Quan, Yu   +4 more
core   +2 more sources

Tandem C–O and C–H Activation at Palladium Enables Catalytic Direct C–H Alkenylation with Enol Pivalates [PDF]

open access: yes, 2021
The use of oxygen-based electrophiles in cross-coupling remains challenging for substrates with strong C–O bonds, with few examples that can combine C–O activation with an-other strong-bond activation in tandem.
Nahiane, Pipaon Fernandez   +4 more
core   +2 more sources

Transition Metal-catalyzed C-H /C-C Activation and Coupling with 1, 3-diyne [PDF]

open access: yes, 2022
This review focuses on providing a broad overview of the recent developments in the field of transition metal-catalyzed C-H bond activation and coupling with 1,3-diyne for assembling alkynylated heterocycles and bis-heterocycles.
Tanmayee, Nanda   +4 more
core   +1 more source

Transition-metal-catalyzed C-H bond activation as a sustainable strategy for the synthesis of fluorinated molecules: an overview. [PDF]

open access: yesBeilstein J Org Chem, 2023
International audienceThe last decade has witnessed the emergence of innovative synthetic tools for the synthesis of fluorinated molecules. Among these approaches, the transition metal catalyzed functionalization of various scaffolds with a panel of ...
Monsigny L, Doche F, Besset T.
europepmc   +2 more sources

Ligand Accelerated Hydrogen Isotope Exchange: Switching C-H Activation from Functionalization Towards C-D Bond Formation [PDF]

open access: yes, 2023
Hydrogen isotope exchange (HIE) has emerged as a unique strategy for labelling, affording plenty of deuterated chemicals with varieties in patterns.
Jianfei, Bai   +6 more
core   +2 more sources

Metal Nanoparticles as Sustainable Tools for C–N Bond Formation via C–H Activation

open access: yesMolecules, 2021
The design of highly active metal nanoparticles to be employed as efficient heterogeneous catalysts is a key tool for the construction of complex organic molecules and the minimization of their environmental costs.
Federica Valentini   +2 more
doaj   +1 more source

C–H Functionalization via Iodine-mediated Electrocatalysis and C–N Bond Formation [PDF]

open access: yes, 2022
The access of heterocyclic compounds via direct amination of C-H bonds are of vital interest because of their role in pharmaceutical and natural products. The combination of molecular iodine and electricity activates benzylic C-H bond and facilitates the
Guilherme. M., Martins, Nisar, Ahmed
core   +1 more source

Lead-free B-site bimetallic perovskite photocatalyst for efficient benzylic C–H bond activation

open access: yesCell Reports Physical Science, 2021
Summary: Although bismuth (Bi)-based halide perovskites have attracted profound attention in photocatalysis, the undesirable photophysical properties are not well modulated, and the effect of surface structure on adsorption and activation of reactant ...
Ming Shi   +7 more
doaj   +1 more source

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