C–S bond activation
CH bond activation of methane and unsaturated molecules by a transient eta2-cyclopropene complex of niobium : synthesis, characterization and mechanistic studies
... CH bond of methane via a 1,3-addition mechanism under mild ...the activation of methane: (i) the generation of the transient K 2 -cyclopropene intermediate A and, (ii) the activation of the CH ...
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Oxidation-promoted activation of a ferrocene C–H bond by a rhodium complex
... 15 of 30 Hz to the Rh atom. [23] This suggested that ferrocene C-H activation and creation of a C-Rh bond has occurred, hence generating planar chirality at ferrocene. The carbenic carbon was found at 147.2 ...
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Advances in the Synthesis of Fluorinated Scaffolds by Transition Metal-Catalyzed C–H Bond Activation
... Tatiana Besset obtained her PhD in chem- istry (2009) at Grenoble University with Dr. Andrew Greene. She then moved to the Westfälische Wilhelms Universität Münster (Germany) as a postdoctoral fellow in the group of ...
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CH bond activation of methane by a transient η2-cyclopropene/metallabicyclobutane complex of niobium
... § Universite ́ de Toulouse, UPS, INPT, LCC, F-31077 Toulouse Cedex 4, France * S Supporting Information ABSTRACT: This study challenges the problem of the activation of a CH bond of methane by soluble ...
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σ-H–H, σ-C–H, and σ-Si–H Bond Activation Catalyzed by Metal Nanoparticles
... 4.2.1. Silanol formation catalyzed by metal NPs. Metal NPs can catalyze the oxidation of silanes to silanols at their surface in a highly exothermic reaction. The reaction is usually carried out with water, which acts as ...
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Perfluorocyclohexene bridges in inverse DiArylEthenes: synthesis through Pd-catalysed C-H bond activation, experimental and theoretical studies on their photoreactivity.
... C-H bond activation/vinylation using the appropriate heterocycles with the commercially available 1,2-dichlorooctafluorocyclohexene used as the coupling partner (Scheme ...
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Platinum-triggered Bond-cleavage of Pentynoyl amide and N-propargyl handles for Drug-Activation
... prodrug activation has fueled research into new triggers that enable bond-cleavage reactions to unleash bioorthogonal protecting groups, which deactivate otherwise potent ...
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Mechanistic Investigations via DFT Support the Cooperative Heterobimetallic C-H and O-H Bond Activation Across Ta=Ir Multiple Bonds
... oxidative activation product where the three hydrides were found to bridge the Ta-Ir ...oxidative activation products is found to be endothermic (by ...
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Cobalt-catalyzed carbon-carbon bond formation by activation of carbon-halogen or carbon-hydrogen bonds
... 145 II-3 Optimization of oxidant and temperature In the preliminary optimization, the largest difference was made by changing the oxidant from 1,2-dichloroethane to 2,3-dichlorobutane. Therefore, we next explored the ...
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Access to Isothiazolones from Simple Acrylamides by Pd-Catalyzed C–H Bond Activation
... With these atom- and step-economical synthetic pathways, unprecedented retrodisconnections were achieved, offering original synthetic routes towards the construction of more complex molecules. 2 However, it is worth ...
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C-H bond activation catalyzed by Ruthenium nanoparticles
... C-H activation reactions involve the activation of one C-H bond, and it needs a pre- functionalized coupling partner such as halocarbons, boronic acids/esters, triflate ester or organometallic ...
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Pd‐Catalyzed Directed Thiocyanation Reaction by C−H Bond Activation
... C@H bond activation was ...C@SCN bond by C@H bond activation will be useful for the organic chemistry community and will open new avenues towards fur- ther investigations regarding the ...
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α-C-C Agostic interactions and C-H bond activation in scandium cyclopropyl complexes
... C-H bond activation in scandium cyclopropyl complexes Cheng Xu, a Guangyu Li, a Michel Etienne,* b Xuebing Leng a and Yaofeng Chen* a This paper addresses the problem of the observation of so-called C-C ...
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Bond activation and catalysis by nontrigonal tricoordinate and tetracoordinate phosphorus compounds
... With the powerful influence of geometric distortion on AB 3 and AB4 electronic structure in mind, we aimed to discover novel reactivity of distorted a-phosphorus and[r] ...
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A journey into metal–carbon bond homolysis
... With additional and intertwined experimen- tal and computational mechanistic investigations, the full cycle could be elucidated (Figure 7) [171]. The first part of the free energy profile, calculated using isobutene and ...
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Bioaéroelasticité d’aéronefs à voilure tournante par bond graphs
... A pilot model has been developed in chapter 3. It consists in a neuromusculoskeletal model of pilot’s left upper limb. The individual subsystems that compose this model have been translated into bond graphs from ...
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Palladium-Catalyzed [3 + 2]-C–C/N–C Bond-Forming Annulation
... C-C/N-C bond forming annulation is due to the total chemoselectivity of the former step (C-allylation) as well as to the well-defined chronology of the following ...
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Modélisation multiphysique par bond graph des encapsulants en électronique de puissance
... 2. MODÉLISATION THERMOMÉCANIQUE La technique de modélisation proposée s’appuie sur l’analo- gie des domaines physiques en termes de transfert de puissance formalisée par le bond graph [7], [8]. Celui-ci permet ...
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Les bond graphs multiénergies pour la modélisation et la surveillance en génie des procédés
... éléments bond graph en fonction des hypothèses ...modèle bond graph est évolutif, ce qui permet aisément d’a¢ner le modèle par simple ajout de nouveaux éléments (perte thermique, e¤et d’inertie, ...
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Petrol Prices and Government Bond Risk Premium
... Following the increase in the volatility of sovereign debt at the end of the nineties, many investors appeared on the market to take advantage of investment opportunities. Goldman and Sachs (200) were the first to ...
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