Search results for "Ferrocene"

showing 10 items of 306 documents

Biferrocene Amino Acid, a Ferrocenylogoue of Ferrocene Amino Acid: Synthesis, Cross-Linking, and Redox Chemistry

2010

Access of the novel biferrocene amino acid 7 is provided by two different routes, namely, via desymmetrization of a biferrocene and via palladium-catalyzed cross-coupling of two substituted ferrocenes. The dissymmetric biferrocene 7 is head−head coupled to ureylene-bridged bis(biferrocene) 9 and also head−tail coupled to amide-bridged bis(biferrocene) 14. The monomer 7 and the dimers 9 and 14 are oxidized to mixed-valent cations 7+, 9+, 92+, and 142+. The valencies are trapped in the solid state as shown by Mossbauer and EPR spectroscopy and by X-ray diffraction analysis of [7](I3). Paramagnetic NMR shift studies (7 → 7+) suggest that the hole is localized at the N-substituted ferrocene uni…

Valence (chemistry)StereochemistryOrganic ChemistryDesymmetrizationRedoxlaw.inventionInorganic Chemistrychemistry.chemical_compoundParamagnetismCrystallographyMonomerchemistryFerrocenelawMössbauer spectroscopyPhysical and Theoretical ChemistryElectron paramagnetic resonanceOrganometallics
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CCDC 2077805: Experimental Crystal Structure Determination

2021

Related Article: Petr Vosáhlo, Léa Radal, Marine Labonde, Ivana Císařová, Julien Roger, Nadine Pirio, Jean-Cyrille Hierso, Petr Štěpnička|2021|Organometallics|40|1934|doi:10.1021/acs.organomet.1c00244

allyl-(11'-di-t-butyl-3-(diphenylphosphino)-3'-(sulfonatomethylaminocarbonyl)ferrocene)-palladium dichloromethane solvateSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 2089402: Experimental Crystal Structure Determination

2021

Related Article: Tuan-Anh Nguyen, Marie-Jose�� Penouilh, He��le��ne Cattey, Nadine Pirio, Paul Fleurat-Lessard, Jean-Cyrille Hierso, Julien Roger|2021|Organometallics|40|3571|doi:10.1021/acs.organomet.1c00465

bis(11'-bis(diphenylphosphanyl)-33'-di-t-butylferrocene)-gold(i) iodide dichloromethane solvateSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 2089400: Experimental Crystal Structure Determination

2021

Related Article: Tuan-Anh Nguyen, Marie-Jose�� Penouilh, He��le��ne Cattey, Nadine Pirio, Paul Fleurat-Lessard, Jean-Cyrille Hierso, Julien Roger|2021|Organometallics|40|3571|doi:10.1021/acs.organomet.1c00465

bis(1-(bis(5-methylfuran-2-yl)phosphanyl)-1'-(diphenylphosphanyl)-33'-di-t-butylferrocene)-silver(i) hexafluoroantimonate dichloromethane solvateSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 1962572: Experimental Crystal Structure Determination

2022

Related Article: Ahmed F. Abdel-Magied, Yusuf Theibich, Amrendra K. Singh, Ahibur Rahaman, Isa Doverbratt, Arun K. Raha, Matti Haukka, Michael G. Richmond, Ebbe Nordlander|2020|Dalton Trans.|49|4244|doi:10.1039/C9DT04799A

bis(mu-hydrido)-(mu-sulfido)-(mu-(SS)-1-(2-(diphenylphosphino)phenyl)-2-(1-(bis(35-bis(trifluoromethyl)phenyl)phosphino)ethyl)ferrocene)-heptacarbonyl-tri-rutheniumSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 1962571: Experimental Crystal Structure Determination

2022

Related Article: Ahmed F. Abdel-Magied, Yusuf Theibich, Amrendra K. Singh, Ahibur Rahaman, Isa Doverbratt, Arun K. Raha, Matti Haukka, Michael G. Richmond, Ebbe Nordlander|2020|Dalton Trans.|49|4244|doi:10.1039/C9DT04799A

bis(mu-hydrido)-(mu-sulfido)-(mu-(SS)-1-(2-(diphenylphosphino)phenyl)-2-(1-(bis(35-bis(trifluoromethyl)phenyl)phosphino)ethyl)ferrocene)-heptacarbonyl-tri-rutheniumSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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Palladium-catalyzed heteroaryl thioethers synthesis overcoming palladium dithiolate resting states inertness: Practical road to sulfones and NH-sulfo…

2018

International audience; We provide efficient synthetic access to heteroaryl sulfones in two-steps using a simple palladium-1,1'-bis [(diphenyl)phosphanyl]ferrocene catalyst to form in high yields variously functionalized heteroaromatic thioethers. Pyridinyl-containing substrates can be subsequently selectively oxidized into sulfones and NH-sulfoximines by using very mild oxidation conditions with a high functional group tolerance. In the palladium catalyzed C-S coupling of heteroaromatic thiols, reactivity limitation is attached with electron-deficient thiols. We show that this limitation can be resolved by the successful use of 2-bromoheteroarenes in the C-S coupling. We established herein…

bond formationarenessulfideschemistry.chemical_element010402 general chemistry01 natural sciencesCatalysisefficientCatalysischemistry.chemical_compounds-arylation[CHIM]Chemical SciencesReactivity (chemistry)SulfonesResting statethiols[PHYS]Physics [physics]010405 organic chemistryProcess Chemistry and TechnologyGeneral Chemistryindolesacid saltsCombinatorial chemistry0104 chemical sciencesThiolatesC-S couplingchemistryFerroceneNH-sulfoximinesReagentElectrophileFunctional groupH functionalizationdirecting groupPalladiumStoichiometryPalladiumCatalysis Communications
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Gold-Catalyzed Suzuki Coupling of ortho -Substituted Hindered Aryl Substrates

2017

International audience; A method that allows hindered ortho-substituted aryl iodides to be efficiently coupled to phenylboronic acid using a gold-catalyzed C-C bond formation is presented. The use of a molecularly-defined dinuclear gold chloride catalytic precursor that is stabilized by a new tetradentate (N,N')-diamino-(P,P')-diphosphino ferrocene hybrid ligand in a Suzuki-type reaction is described for the first time. Electron-rich isopropyl groups on phosphorus were found essen-tial for a superior activity, while the performances of a set of analogous gold dinuclear complexes that were fully characterized by multinuclear NMR spectroscopy and XRD analysis, were investigated. Therefore, ar…

bromides010402 general chemistry01 natural sciencesBiochemistry[ CHIM ] Chemical SciencesCatalysischemistry.chemical_compoundSuzuki reactionPolymer chemistrygold(iii)Organic chemistry[CHIM]Chemical SciencesPhenylboronic acidacidscomplexes010405 organic chemistryLigandArylOrganic ChemistryGeneral ChemistryNuclear magnetic resonance spectroscopy0104 chemical sciencesreactivityhalideschemistryFerrocenenanoparticlesIsopropyl
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CCDC 2047570: Experimental Crystal Structure Determination

2021

Related Article: Eugenia Peresypkina, Kevin Grill, Barbara Hiltl, Alexander V. Virovets, Werner Kremer, Jan Hilgert, Wolfgang Tremel and Manfred Scheer|2021|Angew.Chem.,Int.Ed.|60|12132|doi:10.1002/anie.202103178

catena-[(mu-1'2'3'4'5'-pentamethyl-12345-pentaphosphaferrocene)-bis(mu-pentanedinitrile)-di-silver bis(hexafluoro-antimony) dichloromethane solvate]Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 2047569: Experimental Crystal Structure Determination

2021

Related Article: Eugenia Peresypkina, Kevin Grill, Barbara Hiltl, Alexander V. Virovets, Werner Kremer, Jan Hilgert, Wolfgang Tremel and Manfred Scheer|2021|Angew.Chem.,Int.Ed.|60|12132|doi:10.1002/anie.202103178

catena-[bis(mu-butanedinitrile)-(mu-1'2'3'4'5'-pentamethyl-12345-pentaphosphaferrocene)-di-silver bis(hexafluoro-antimony) dichloromethane solvate]Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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