1271-55-2Relevant articles and documents
Metal complexation of thioacylferrocenes: crystal structures of pentacarbonyl(thiobenzoylferrocene-S)chromium and benzoylferrocene
Barnes, John C.,Bell, William,Glidewell, Christopher,Howie, R. Alan
, p. 369 - 378 (1990)
Acylferrocenes (C5H5)Fe(C5H4COR) (R=CH3, C2H5, (CH3)2CH, (CH3)3C or Ph) can be readily thionated to give thioacylferrocenes by use of P4S10 in non-polar solvents such as CH2Cl2 or toluene; use of polar solvents such as THF or diglyme provides very poor conversions.Thiobenzoylferrocene reacts readily with Et4N+-- (M = Cr, Mo, or W) in the presence of silver nitrate to yield (C5H5)Fe>, in which the M(CO)5 group is bonded to the sulphur atom as revealed by an X-ray diffraction study.The structure consists of isolated molecules in which a Cr(CO)5 fragment of approximate C4v symmetry is bonded via sulphur to the thioacylferrocene with an Cr-S bond length of 2.412(1) Angstroem, an S=C bond length of 1.667(2) Angstroem and a C-S-Cr angle of 121.9(1) deg.Photo oxidation of (C5H5)Fe> yields benzoylferrocene the crystal structure of which was determined.
Improvement of ferrocene acylation. Conventional vs. microwave heating for scandium-catalyzed reaction in alkylmethylimidazolium-based ionic liquids
Berardi, Serena,Conte, Valeria,Fiorani, Giulia,Floris, Barbara,Galloni, Pierluca
, p. 3015 - 3020 (2008)
Acylation of ferrocene-catalyzed by scandium triflate was thoroughly investigated. Reaction time and temperature are important parameters, in that prolonged treatment causes substrate decomposition and/or catalyst deactivation. Hydrophobic alkylmethylimid
Generation of ferrocenylvinyl cation CpFeC5H4–C+=CH2 by protonation of ferrocenylacetylene with Nafion and its reactions with SMe2 and PPh3 in scCO2 giving onium salts
Kizas, Ol'ga A.,Chaschin, Ivan S.,Godovikov, Ivan A.,Dolgushin, Fedor M.,Antonov, Dmitrii Yu.,Nikitin, Lev N.,Khokhlov, Alexei R.
, p. 368 - 370 (2017)
Cation CpFeC5H4–C+=CH2 was obtained by protonation of FcC[tbnd6]CH with Nafion superacid in DMF or scCO2 and characterized by NMR spectroscopy. The protonation in the presence of SMe2 or PP
The synthesis of ferrocenyl- and ferrocenoylpyrimidines
Zherebker,Rodionov,Pilipenko,Kachala,Nikitin,Belousova,Simenel
, (2014)
New derivatives of pyrimidine were synthesized from ferrocenyl ketones by the reactions of [3+1+1+1]annulation and intermolecular cyclization. The electrochemical behavior of the obtained compounds was studied by the method of cyclic voltammetry. All the
Palladium-Catalyzed Removable 8-Aminoquinoline Assisted Chemo- and Regioselective Oxidative sp2-C-H/sp3-C-H Cross-Coupling of Ferrocene with Toluene Derivatives
Sattar, Moh.,Kumar, Sangit
, p. 5960 - 5963 (2017)
The coupling of the C(sp2)-H bond of ferrocene with toluene avoiding in situ functionalization of both coupling partners has been achieved using palladium and iron dual catalysis. This cross oxidative coupling features regioselectivity to prima
Fabrication of bisferrocenyl derivative grafted HTPB with high iron content and its application in dopamine detection
Aghaiepour, Alireza,Rahimpour, Shabnam,Payami, Elmira,Mohammadi, Reza,Teimuri-Mofrad, Reza
, (2021)
In this work, we employed an efficient strategy to increase the graft percentage of ferrocene in hydroxyl terminated polybutadiene (HTPB) polymer framework. For this purpose, we use 5-chloro-2-pentanone to attach the two alkylferrocene derivatives to each other. In order to incorporate the obtained bis-alkylferrocene derivatives to the polymer backbone, the chlorine atom at the end of the coupling agent alkyl chain was converted to a silane group using the Grignard reaction. Finally, hydrosilylation reaction of as-synthesized silane derivatives and HTPB in the presence of Speier's catalyst (H2PtCl6) resulted in novel bis-ferrocene modified HTPBs with a variety of iron contents. The iron percentage, viscosity, and glass transition temperature of the novel bis-ferrocene modified HTPBs as essential parameters of polymer characterization were investigated. Obtained polymers are electro-active due to the presence of ferrocenyl groups. Additionally, unlike the virgin polymer (HTPB) they show optical properties. The final polymer was immobilized onto the bare glassy carbon electrode (GCE) surface using the cross-linking effect of terephthaldehyde (TFA) and fresh egg white (FEW). Electrochemical impedance spectroscopy (EIS) confirmed the successful immobilization of the polymer. The ability of the fabricated electrode to mediate dopamine (DA) oxidation was evaluated, and the results show the acceptable detection limits as well as linear ranges for the determination of dopamine using GC/BEFcHTPB/(TFA+FEW).
Very high rate enhancement of benzyl alcohol oxidation by an artificial enzyme
Marinescu, Lavinia G.,Bols, Mikael
, p. 4590 - 4593 (2006)
(Figure Presented) Promoting the atomic dialogue! At neutral pH and ambient temperature, a cyclodextrin-derived ketone causes hydrogen peroxide and benzyl alcohols to meet in its active site and react up to 60 000 times faster than they do outside the cyclodextrin.
Tuneable superbase-catalyzed vinylation of α-hydroxyalkylferrocenes with alkynes
Trofimov, Boris A.,Oparina, Ludmila A.,Tarasova, Olga A.,Artem'ev, Alexander V.,Kobychev, Vladimir B.,Gatilov, Yuriy V.,Albanov, Alexander I.,Gusarova, Nina K.
, p. 5954 - 5960 (2014)
Superbase-catalyzed (KOH/DMSO suspension as a catalyst) vinylation of hydroxymethyl- and hydroxyethylferrocenes with terminal and internal alkynes (acetylene, propyne, phenylacetylene, 3-ethynylpyridine, 1-propyn-1-yl-benzene, diphenylacetylene) affords hitherto unknown vinyl ethers of ferrocene in 30-93% yields depending on the alkyne structure and the tuneable ratio of reactants/KOH/DMSO. The vinylation smoothly proceeds under mild conditions (70-90 °C, 0.25-13 h). With unsubstituted acetylene the process is readily realized under atmospheric pressure (yield of the corresponding vinyl ethers is 81-90%) though under pressure (initial pressure at room temperature is 10-13 atm, maximum pressure is 13-16 atm at the reaction temperature) the yield is close to quantitative (93%). The synthesized compounds were characterized using 1H and 13C NMR, and IR spectroscopy, as well as X-ray diffraction analysis.
Synthesis, characterization and electrochemical properties of novel trinuclear ferrocenyl based organosilane compounds
Teimuri-Mofrad, Reza,Safa, Kazem D.,Rahimpour, Keshvar
, p. 36 - 44 (2014)
Some trinuclear ferrocenyl based organosilane compounds were synthesized by hydrosilylation reaction of [4-(ethylferrocenyl)butyl]dimethylsilane and (4-ferrocenylbutyl)dimethylsilane with bisalkenylferrocene derivatives, in the presence of the Karstedt catalyst at room temperature. In addition a simple method for the preparation of 1,1′-bis(3-butenyl)alkylferrocenes from 1,1′-bis(4-chlorobutyl)alkylferrocenes under mild conditions was developed. 1H and 13C NMR, FT-IR, GC-MS, CHN analysis, atomic absorbtion spectroscopy supported the predicted structure of the products. The electrochemical behavior of synthesized compounds was studied by cyclic voltammetry in CH3CN/0.1 M LiClO4 utilizing a glasse carbon working electrode. The relationship between the peak currents and the square root of the scan rate, showed that the redox process is diffusion limited.
Assembly of dendrimers with redox-active [{CpFe(μ3-CO)} 4] clusters at the periphery and their application to oxo-anion and adenosine-5′-triphosphate sensing
Aranzaes, Jaime Ruiz,Belin, Colette,Astruc, Didier
, p. 132 - 136 (2006)
9, 16, or 27 [CpFe(μ3-CO)]4 clusters contain the title assemblies (see picture). The one-electron oxidation Fe 4→Fe4+of all Fe4 units appears as a single reversible cyclic voltammetry wave and was used in solution and with dendrimer-modified electrodes for oxo-anion recognition. ATP2- is selectively recognized and better than H2PO4-. The larger the dendrimer, the easier is the re-use of the modified electrode sensor. (Chemical Equation Presented)
