Selective Activation of Methane C-H Bond in the Presence of Methanol [PDF]
Direct methane to methanol (MTM) conversion over heterogeneous catalysts is a promising route for valorization of methane. The methane C-H bond activation is considered as the key step of the MTM and is the focus of considerable research activity ...
Yongjie Xi (8064173) +3 more
core +1 more source
Transition Metal-catalyzed C-H /C-C Activation and Coupling with 1, 3-diyne [PDF]
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
The Pd-catalyzed C–H bond functionalization of lilolidine was investigated. The use of a palladium-diphosphine catalyst associated to acetate bases in DMA was found to promote the regioselective arylation at α-position of the nitrogen atom of lilolidine ...
Hai-Yun Huang +4 more
doaj +1 more source
Co(III) Intermediates in Cobalt-Catalyzed, Bidentate Chelation Assisted C(sp2)-H Functionalizations
The C-H bond activation and functionalization is a powerful tool that provides efficient access to various organic molecules. The cobalt-catalyzed oxidative C-H bond activation and functionalization has earned enormous interest over the past two decades.
Aleksandrs Cizikovs, Liene Grigorjeva
doaj +1 more source
C−H Bond Activation by Iridium(III) and Iridium(IV) Oxo Complexes [PDF]
Oxidation of an iridium(III) oxo precursor enabled the structural, spectroscopic, and quantum-chemical characterization of the first well-defined iridium(IV) oxo complex.
Verplancke, H. +15 more
core +1 more source
Recent Advances in the Synthesis of Cyclic Sulfoximines via C–H Bond Activation
Sulfoximines, a ubiquitous class of structural motifs, are widely present in bioactive molecules and functional materials that have received considerable attention from modern organic chemistry, pharmaceutical industries, and materials science ...
Bingren Wang, Xiayu Liang, Qingle Zeng
doaj +1 more source
C2-Alkylation of N-pyrimidylindole with vinylsilane via cobalt-catalyzed C–H bond activation
Direct C2-alkylation of an indole bearing a readily removable N-pyrimidyl group with a vinylsilane was achieved by using a cobalt catalyst generated in situ from CoBr2, bathocuproine, and cyclohexylmagnesium bromide.
Zhenhua Ding, Naohiko Yoshikai
doaj +1 more source
Direct Light Activation of Hypervalent Iodine Reagents: Substrate-Controlled C-C or C-H Alkynylation of Cyclopropanes [PDF]
We report the direct light activation of ethynylbenziodoxolone (EBX) reagents for the oxyalkynylation of aryl- and amino-cyclopropanes as well as styrenes. Irradiation with visible light at 440 nm promoted the reaction without the need of a photocatalyst.
Tin. V. T. , Nguyen, Jerome, Waser
core +1 more source
Understanding trends in C–H bond activation in heterogeneous catalysis [PDF]
A universal descriptor for the prediction of C–H bond activation barriers has been established, and combined with a thermodynamic analysis of methane activation, to provide design rules for various types of heterogeneous ...
Yoo, Jong Suk +8 more
core +1 more source
Mechanistic Study of Ru-NHC-Catalyzed Hydrodefluorination of Fluoropyridines: The Influence of the NHC on the Regioselectivity of C–F Activation and Chemoselectivity of C–F versus C–H Bond Cleavage [PDF]
We describe a combined experimental and computational study into the scope, regioselectivity, and mechanism of the catalytic hydrodefluorination (HDF) of fluoropyridines, C5F5–xHxN (x = 0–2), at two Ru(NHC)(PPh3)2(CO)H2 catalysts (NHC = IPr, 1, and IMes,
Whittlesey, Michael K. +19 more
core +1 more source

