Results 1 to 10 of about 23,038 (267)
Molecules, 2021 Rollover cyclometalation constitutes a particular case of cyclometallation reaction. This reaction occurs when a chelated heterocyclic ligand loses its bidentate coordination mode and undergoes an internal rotation, after which a remote C–H bond is ...
Antonio Zucca, Maria I. Pilo
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Coumarins Synthesis and Transformation via C–H Bond Activation—A Review
Inorganics, 2022 For several decades, coumarins have attracted considerable attention due to the fact of their application in diverse fields such as medical science and biomedical research as well as several industrial branches.
Katarzyna Szwaczko
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Undirected C-H Bond Activation in Aluminium Hydrido Enaminonates
Molecules, 2023 Two new aluminium hydrido complexes were synthesized by reacting AlH3 with the enaminone ligand N-(4,4,4-trifluorobut-1-en-3-on)-6,6,6-trifluoroethylamine (HTFB-TFEA) in different molar ratios to obtain mono- and di-hydrido-aluminium enaminonates.
Chijioke Kingsley Amadi +4 more
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Strategies to transform remote C(sp3)-H bonds of amino acid derivatives
Tetrahedron Chem, 2022 Amino acids and peptides play an important role in nature as well as in the pharmaceutical industry. Therefore, transformation of amino acids and peptides into their unnatural derivatives via step and atom economical ways is highly demanding. Although, a
Supreeta Sen +2 more
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Divergent isoindolinone synthesis through palladium-catalyzed isocyanide bridging C–H activation
Cell Reports Physical Science, 2022 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
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Intermolecular Radical C–H Bond Activation: A Powerful Tool for Late Stage Functionalization
CHIMIA, 2020 The synthesis of complex molecules via radical reactions involving carbon–carbon and carbon–heteroatom bonds has become a very successful approach. Radical chemistry has long been dominated by the use of tin-based reagents.
Fabrice Dénès
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Selective activation of CH bond of phenol in ortho-position into COH bond in a two-phase system
Catalysis Communications, 2021 A method for the selective activation of CH bond of phenol in ortho-position into C-OH bond was developed at room temperature over Cu2+ ions in a two-phase system using marginally water-soluble polar alcohols, acetonitrile and water as solvents and ...
Ke Zheng +4 more
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Metal Nanoparticles as Sustainable Tools for C–N Bond Formation via C–H Activation
Molecules, 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
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Strain Release in CH Bond Activation? [PDF]
Angewandte Chemie, 2009 What a relief! In 1955 the principle of strain release was put forward to explain the differing reactivity of axial and equitorial alcohols during oxidation. Our findings suggest that this same rationale may account for the differing rates of activation between axial and equitorial C–H bonds in C–H activation processes.
Chen, Ke +2 more
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Lead-free B-site bimetallic perovskite photocatalyst for efficient benzylic C–H bond activation
Cell 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
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