Author: Léa Radal

Highly Functionalized Ferrocenes

2020

International audience; Ferrocene is unique among organometallic compounds, and serves notably as a versatile platform towards the production of ligands useful to promote transition metals chemistry. A general limiting aspect of the synthesis of ferrocene derivatives is the efficient access to sophisticated highly functionalized polysubstituted ferrocenes, i. e. bearing four or more substituents replacing hydrogen atoms on the cyclopentadienyl rings. These ferrocene derivatives can bear various functional or/and structuring spectator substituents. Their preparation involves synthetic difficulties resulting from the need of multiple functionalizations coexisting altogether, and satisfying fu…

Thesaurus (information retrieval)Setc.). Thus010405 organic chemistryChemistryOPNhighly functionalized ferrocenes010402 general chemistryN)-01 natural sciencesB)-and (NP)-0104 chemical sciencesInorganic ChemistryWorld Wide WebP')-which include notably (P(PB)-B)compounds[CHIM.COOR]Chemical Sciences/Coordination chemistryEuropean Journal of Inorganic Chemistry

researchProduct

Synthesis and Catalytic Use of Polar Phosphinoferrocene Amidosulfonates Bearing Bulky Substituents at the Ferrocene Backbone

2021

International audience; Anionic phosphinoferrocene amidosulfonates bearing sterically demanding t-butyl substituents in positions 3 and 3' of the ferrocene scaffold, viz. rac-(Et3NH)[Fe(η5-tBuC5H3PR2)(η5-tBuC5H3C(O)NHCH2SO3)] (R = phenyl and cyclohexyl) were synthesized by amidation of the corresponding phosphinocarboxylic acids, [Fe(η5-tBuC5H3PR2)(η5-tBuC5H3CO2H)]. These ditopic polar phosphinoferrocenes and their non-t-butylated analogues have been used as lig-ands to prepare zwitterionic (η3-allyl)palladium(II) complexes [Pd(η3-C3H5){Fe(η5-R'C5H3PR2)(η5-R'C5H3C(O)NHCH2SO3)}] (R' = H, tBu, R = Ph, Cy). Depending on the isolation procedure and crystallization condi-tions, some complexes we…

Bearing (mechanical)010405 organic chemistryChemistry[CHIM.ORGA]Chemical Sciences/Organic chemistryOrganic Chemistry[CHIM.CATA]Chemical Sciences/Catalysis010402 general chemistry01 natural sciences0104 chemical sciencesCatalysislaw.inventionInorganic Chemistrychemistry.chemical_compoundFerrocenelawPolymer chemistryPolar[CHIM.COOR]Chemical Sciences/Coordination chemistryPhysical and Theoretical Chemistry

researchProduct

Highly Functionalized Brønsted Acidic/Lewis Basic Hybrid Ferrocene Ligands: Synthesis and Coordination Chemistry

2019

International audience; A general challenging issue in the synthesis of hemilabile ferrocene ligands is the access to highly functionalized ferrocene starting materials. These can bear donor/acceptor atoms, additional functional and structuring spectator substituents, but the preparation of such species poses general synthetic difficulties. We report herein alternative synthetic routes to hybrid ferrocene donors such as tert-butylated phosphanylcarboxylic acids and their corresponding aldehydes. These hybrid ambiphilic species that combine Brønsted-acidic and Lewis-basic functional moieties in their structure were characterized by multinuclear NMR and single-crystal X-ray diffraction analys…

chemistry.chemical_classification010405 organic chemistryHydrogen bondSolid-state010402 general chemistry01 natural sciencesCombinatorial chemistryAcceptor0104 chemical sciencesCoordination complexInorganic Chemistrychemistry.chemical_compoundFerrocenechemistry[CHIM.COOR]Chemical Sciences/Coordination chemistryBrønsted–Lowry acid–base theoryMutual influence

researchProduct

Synthesis, characterisation and complexation of di- and trifunctional hybrid ferrocenylphosphine ligands.

2020

Organometallic compounds with at least one metal-carbon bond are used in various fields of chemistry: for example, in medical research for anticancer treatments, in catalytic reactions as catalysts or ligands, in electrochemistry for their redox potentials, in materials chemistry for their optical and electronic properties. The principal family of organometallic compounds of this thesis is ferrocene due to its physical and chemical properties particularly its robustness and the possibility of multiple substitutions on cyclopentadienyl ligands, the dissymmetric functionalization of these cyclopentadienyl rings being a major challenge.The first part of this thesis describes the bibliography o…

Aminoacid[CHIM.OTHE] Chemical Sciences/OtherBrönsted acidAcide de BrönstedComplexationFerroceneHybrid ligandLigand hybridePhosphineFerrocèneAminoacide

researchProduct