Articles with "catalyzed bond" as a keyword



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Heterogeneous Cobalt‐Catalyzed C−C Bond Cleavage in Alcohols to Carbonyl Compounds

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Published in 2021 at "ChemCatChem"

DOI: 10.1002/cctc.202100950

Abstract: Cobalt oxide hydrate (Co(OH)x) supported on metal oxides were prepared. The oxidative cleavage of C(OH)−C bond in alcohol was catalyzed by Co(OH)x/metal oxides using molecular oxygen as the oxidant, and the corresponding product was obtained… read more here.

Keywords: cleavage; bond; heterogeneous cobalt; cobalt catalyzed ... See more keywords
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Pd-catalyzed C–H bond activation of Indoles for Suzuki reaction

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Published in 2019 at "Journal of Chemical Sciences"

DOI: 10.1007/s12039-019-1649-y

Abstract: We present a practical method for Suzuki coupling by which unprotected or N-protected indoles may be selectively arylated in the C2-position through direct C–H bond activation by electrophilic Pd(TFA)2\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs}… read more here.

Keywords: usepackage; bond activation; catalyzed bond; activation ... See more keywords
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Computational studies on Ni-catalyzed C−O bond activation of esters

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Published in 2018 at "Journal of Organometallic Chemistry"

DOI: 10.1016/j.jorganchem.2018.01.019

Abstract: Abstract Ni-catalyzed C−O bond activation of esters provides an unprecedented synthetic approach to utilize esters. To understand the mechanistic details of the Ni-catalyzed C−O bond activation, computational chemists have dedicated remarkable efforts to elucidate the… read more here.

Keywords: activation esters; bond; bond activation; computational studies ... See more keywords
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CNT-CuO catalyzed C–N bond formation for N-arylation of 2-phenylindoles

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Published in 2019 at "Journal of Organometallic Chemistry"

DOI: 10.1016/j.jorganchem.2019.120970

Abstract: Abstract Carbon nanotube–copper oxide (CNT–CuO) nanocomposites were prepared by depositing CuO nanoparticles onto functionalized CNT surfaces. The structure and elemental content of CNT–CuO were characterized using transmission electron microscopy, X-ray diffraction, and Auger electron spectroscopy.… read more here.

Keywords: cuo; cnt cuo; bond formation; cuo catalyzed ... See more keywords
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Site selective [bmIm]OH catalyzed C C bond functionalization under green conditions

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Published in 2018 at "Tetrahedron Letters"

DOI: 10.1016/j.tetlet.2018.01.010

Abstract: Abstract Effective methodology that activates selectively either end of a carbon–carbon triple bond requires key challenge of differentiating between the multitude of C C bonds present in complex organic molecule. The synthetic strategy exploited the… read more here.

Keywords: site selective; bond; bmim catalyzed; bmim ... See more keywords
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Transition-Metal-Catalyzed C-H Bond Activation for the Formation of C-C Bonds in Complex Molecules.

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Published in 2023 at "Chemical reviews"

DOI: 10.1021/acs.chemrev.2c00888

Abstract: Site-predictable and chemoselective C-H bond functionalization reactions offer synthetically powerful strategies for the step-economic diversification of both feedstock and fine chemicals. Many transition-metal-catalyzed methods have emerged for the selective activation and functionalization of C-H bonds.… read more here.

Keywords: bond; transition metal; catalyzed bond; metal catalyzed ... See more keywords
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Iron-Catalyzed C-H Bond Activation.

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Published in 2017 at "Chemical reviews"

DOI: 10.1021/acs.chemrev.6b00772

Abstract: Catalytic C-H bond activation, which was an elusive subject of chemical research until the 1990s, has now become a standard synthetic method for the formation of new C-C and C-heteroatom bonds. The synthetic potential of… read more here.

Keywords: iron catalyzed; bond activation; catalyzed bond; activation ... See more keywords
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Palladium-Catalyzed C-S Bond Formation as a Tool for Latent-Active Glycosylation.

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Published in 2020 at "Organic letters"

DOI: 10.1021/acs.orglett.0c02090

Abstract: A high-yielding palladium-catalyzed C-S cross-coupling is presented for utilization in carbohydrate chemistry as a key transformation for attachment of a second chelating sulfur atom that allows the exploitation of a latent-active glycosylation strategy with Cu(OTf)2… read more here.

Keywords: latent active; bond formation; active glycosylation; palladium catalyzed ... See more keywords
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Copper-Catalyzed Si-H Bond Insertion Reaction of N-Propargyl Ynamides with Hydrosilanes.

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Published in 2021 at "Organic letters"

DOI: 10.1021/acs.orglett.1c03830

Abstract: Transition-metal-catalyzed Si-H bond insertion reactions are generally limited to stabilized diazo compounds. An efficient copper-catalyzed Si-H bond insertion reaction of N-propargyl ynamides with hydrosilanes is described, allowing practical and atom-economic construction of valuable organosilanes in… read more here.

Keywords: bond insertion; catalyzed bond; insertion reaction; bond ... See more keywords
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Pd-Catalyzed C-O Bond Formation Enabling the Synthesis of Congested N,N,O-Trisubstituted Hydroxylamines.

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Published in 2022 at "Organic letters"

DOI: 10.1021/acs.orglett.2c02975

Abstract: A Pd-catalyzed C-O cross-coupling of O-acyl hydroxylamines and tertiary or secondary alkyl electrophiles was reported without the cleavage of the rather fragile N-O bond. The described strategy provides direct access to congested N,N,O-trisubstituted hydroxylamines bearing… read more here.

Keywords: trisubstituted hydroxylamines; catalyzed bond; bond formation; congested trisubstituted ... See more keywords
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Intramolecular Ring Expansion of 3-Silaazetidine with Alkynes Enabled by Pd-Catalyzed Si-C Bond Activation.

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Published in 2022 at "Organic letters"

DOI: 10.1021/acs.orglett.2c03698

Abstract: An intramolecular ring expansion of in situ formed 3-silaazetidine with internal alkynes has been developed via Pd-catalyzed Si-C bond activation. The reaction gives rise to 6,5- and 6,6-fused bicyclic 1,3-azasilines, in which the silicon atom… read more here.

Keywords: catalyzed bond; bond activation; ring expansion; intramolecular ring ... See more keywords