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
openaire +3 more sources
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
doaj +1 more source
C—H Activation of Unbiased C(sp3)—H Bonds [PDF]
, 2022 The selective functionalization of non-activated C(sp3)—H bonds is a major challenge in chemistry. Here, we have developed an [Au]-catalyzed C(sp3)-H activation of common 1 bromoalkynes into a library of diverse 3D-scaffolds.
Pablo, Barrio +6 more
core +2 more sources
Reversing the Regioselectivity of Asymmetric C ̶ H and N ̶ H Bond Annulation with Bromoalkynes Under Cobalt(III)-Catalysis [PDF]
, 2023 Metal-catalyzed C-H bond annulation strategy offers a versatile platform, allowing the construction of complex p-chiral molecules through atom- and step-economical fashion. However, regioselective insertion of -coupling partner between M-C bond and high
Subramani , Kumaran +4 more
core +2 more sources
Computational exploration of the reaction mechanism of the Cu+-catalysed synthesis of indoles from N-aryl enaminones [PDF]
Royal Society Open Science, 2016 We have studied the role of Cu+-phenantroline as a catalyst in the cyclization of N-aryl-enaminones using density-functional theory computations. The catalyst was found to bind the substrate upon deprotonation of its eneaminone, and to dramatically ...
Carlos E. P. Bernardo, Pedro J. Silva
doaj +1 more source
Synergistic C-H bond activation across molybdenum-iridium multiply bonded complexes: a cascade of transformations. [PDF]
Chem SciInternational audienceeterobimetallic compounds offer unique opportunities for activating substrates through cooperative interactions between two distinct metal centers, potentially leading to catalytic reactivity beyond the reach of monometallic systems.
Dubrawski Z +5 more
europepmc +2 more sources
C−H Bond Activation of Hydrocarbons by an Imidozirconocene Complex [PDF]
Journal of the American Chemical Society, 2004 AbstractFor Abstract see ChemInform Abstract in Full Text.
Helen M, Hoyt +2 more
openaire +3 more sources
Substrate Conformation Masquerades Two different Oxidants in Aromatic C-H and C-F bond activation by Heme-dependent Tyrosine Hydroxylase [PDF]
, 2022 A recently discovered heme-dependent enzyme TyrH offers a green approach for functionalizing the high-strength C-H and C-F bonds in aromatic compounds.
Gary, Black +5 more
core +2 more sources
Ni-catalyzed benzylic β-C(sp3)–H bond activation of formamides
Nature Communications, 2022 The development of 3d-metal-catalyzed β-C–H bond activation via 4-membered metallacycles remains an elusive challenge. Here, the authors report a Ni-Al bimetal-catalyzed β-C(sp3)–H bond activation of formamides via 4-membered nickelacycles.
Rong-Hua Wang +7 more
doaj +1 more source
Co(III) Intermediates in Cobalt-Catalyzed, Bidentate Chelation Assisted C(sp2)-H Functionalizations
Inorganics, 2023 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