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The preparation of 1-ferrocenyl-2-propanol (5) from lithioferrocene and propylene oxide is described. The reaction of lithium diisopropylamide with 2-ferrocenylethanol (3) or 1-ferrocenyl-2-propanol (5), followed by the addition to hexachlorocyclotriphosphazane (1) provides N3P3Cl6-n (OCHRCH2C5H4FeCp)n [R=H, n=1 (3) or 2 (4); R=CH3, n=1 (6)]. The corresponding reactions with ferrocenylmethanol lead to degradation products via a phosphazene-phosphazene rearrangement. The substitution pattern observed for N3P3C14(OCH2CH2C5H4FeCp)2 (4) suggests that the reaction follows a predominantly cis-non-geminal pathway. The substituted phosphazene derivatives were characterized by standard means including 31P-NMR, mass spectrometry, elemental analysis and cyclic voltammetry. An X-ray crystal structure of N3P3C15(OCH2CH2C5H4FeCp) (3) was obtained.

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Reference：
Iron Catalysis in Organic Synthesis | Chemical Reviews,
Iron Catalysis in Organic Synthesis: A Critical Assessment of What It Takes To Make This Base Metal a Multitasking Champion

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A tetraazamacrocycle containing ferrocene moieties has been synthesized and characterized. The tetraprotonated form of this compound was evaluated as a receptor (R) for anion recognition of several substrates (S), Cl-, PF6-, HSO4-, H2PO 4- and carboxylates, such as p-nitrobenzoate (p-nbz -), phthalate (ph2-), isophthalate (iph2-) and dipicolinate (dipic2-). 1H NMR titrations in CD 3OD indicated that this receptor is not suitable for recognizing HSO4- and H2PO4-, but weakly binds p-nbz-, and strongly interacts with ph2-, dipic2-, and iph2- anions forming 1 : 2 assembled species. The largest beta2 binding constant was determined for ph 2-, followed by dipic2- and finally iph2-. The effect of the anionic substrates on the electron-transfer process of the ferrocene units of R was evaluated using cyclic voltammetry (CV) and square wave voltammetry (SWV) in methanol solution and 0.1 mol dm-3 (CH 3)4NCl as the supporting electrolyte. Titrations of the receptor were undertaken by addition of anion solutions in their tetrabutylammonium or tetramethylammonium forms. The protonated ligand exhibits a reversible voltammogram, which shifts cathodically in the presence of the substrates. The data revealed kinetic constraints in the formation of the receptor/substrate entity for dipic2-, ph2- and iph 2- anions, but not for p-nbz-. In spite of the slow kinetics of assembled species formation with the ph2- substrate, this anion provides the largest redox-response when the supramolecular entity is formed, followed by dipic2-, iph2- and finally p-nbz – anions. This trend is in agreement with the 1H NMR results and the values of the binding constants. Single crystal X-ray structures of the receptor with PF6-, ph2-, iph 2- and p-nbz- were carried out and showed that supermolecules with a RS2 stoichiometry are formed with the first three anions, but RS4 with p-nbz-. In all cases the binding occurs outside the macrocyclic cavity via N-H … O=C hydrogen bonds for carboxylate anions and N-H … F hydrogen bonds for the PF 6- anion, which is in agreement with the solution results. The macrocyclic framework adopts different conformations in order to interact with each substrate having Fe … Fe intramolecular distances ranging from 10.125(14) to 12.783(15) A. The Royal Society of Chemistry 2005.

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Reference：
Iron Catalysis in Organic Synthesis | Chemical Reviews,
Iron Catalysis in Organic Synthesis: A Critical Assessment of What It Takes To Make This Base Metal a Multitasking Champion

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The invention discloses a carbon material of the load of the ruthenium particles preparation and catalytic applications. Specifically, the present invention preparation of ruthenium particles having an average particle size distribution in the 2.2 nm the left and the right, its uniformly dispersed in the carbon material on the substrate. The material can be catalyzed transfer reaction to aromatic methanol and aromatic amine as the raw material synthetic secondary amine, has high conversion efficiency, wide application range, mild reaction conditions and the like. After the end of the conversion reaction, from the reaction system in the centrifugal separating out catalyst, by simple washing and drying can be carried out by the next round of reaction, circulation 5 times can still be kept stable and its catalytic activity did not experience any is obviously reduced. (by machine translation)

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Reference：
Iron Catalysis in Organic Synthesis | Chemical Reviews,
Iron Catalysis in Organic Synthesis: A Critical Assessment of What It Takes To Make This Base Metal a Multitasking Champion

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An alternative and efficient approach for the synthesis of N-alkylated amides from nitriles and alcohols was proposed and accomplished. By the combination of [(IPr)Au(NTf2)] (IPr = 1,3-bis(diisopropylphenyl)imidazol-2-ylidene) and [CpIrCl2]2 (Cp = eta5-pentamethylcyclopentadienyl), a series of nitriles were first hydrated to give amides, in which the resulting amides were further N-alkylated with a variety of alcohols as alkylating agents to afford N-alkylated amides with good to excellent yields. Compared with previous methods for the synthesis of N-alkylated amides from nitriles and alcohols as starting materials, this protocol could be accomplished with high atom economy under more environmentally benign conditions.

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Reference：
Iron Catalysis in Organic Synthesis | Chemical Reviews,
Iron Catalysis in Organic Synthesis: A Critical Assessment of What It Takes To Make This Base Metal a Multitasking Champion

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Acylation of alkyl- and 1,1?-dialkylferrocene alcohols and diols as well as (3,4,4-trichlorobut-3-ene-1-ol-1-yl)-4,5-cymantrene with dichloroisothiazole- and 5-arylisoxazole-3-carbonyl chlorides has afforded esters containing 1,2-azoles fragments. Some of the obtained compounds have exhibited potentiating action in the binary mixtures with insecticides.

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Reference：
Iron Catalysis in Organic Synthesis | Chemical Reviews,
Iron Catalysis in Organic Synthesis: A Critical Assessment of What It Takes To Make This Base Metal a Multitasking Champion

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A ligand, 1,1?-diacetylferrocene bis-2-furoylhydrazone (H 2Bafh), and its lanthanide [Ln(III)] complexes, [Ln(H 2Bafh)3]·(ClO4)3· nH2O [complexes A: Ln = La(III), Gd(III), Tm(III), Yb(III)], and [Ln(H2Bafh)Cl2]-Cl·nH2O [complexes B: Ln = Y(III), La(III), Nd(III), Gd(III), Tm(III)] were prepared and characterized by microanalyses, IR, 1H NMR, and UV-VIS spectra, molar conductivity, and TGA analyses.

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Reference：
Iron Catalysis in Organic Synthesis | Chemical Reviews,
Iron Catalysis in Organic Synthesis: A Critical Assessment of What It Takes To Make This Base Metal a Multitasking Champion

Product Details of 1273-94-5, Healthcare careers for chemists are once again largely based in laboratories, although increasingly there is opportunity to work at the point of care, helping with patient investigation. 1273-94-5, Name is 1,1′-Diacetylferrocene, molecular weight is 262.0412. molecular formula is C14H6FeO2. In an Article，once mentioned of 1273-94-5

The effect of substituents in the Cp ligands on the electronic structure has been studied for the 1,1′-disubstituted ferrocenes Fe(CpX)2, with X = C2H5, OCH3, CN, COCH3, COOCH3, OOCCH3, CH2C6H5, or C6H5, by UV photoelectron spectroscopy and by CNDO/2 calculations.The energy gap between the 2E2g and 2A1g ion states, 0.36 eV in the parent ferrocene, is affected only by the COCH3 and COOCH3 substituents, which lower it to 0.22 and 0.28 eV, respectively.Splitting of e1u(?) level due to the lowering of the symmetry is the only effect observed in the photoelectron spectra.There is a strong conjugation between the phenyl and cyclopentadienyl ?-orbitals in 1,1′-diphenylferrocene.The changes in the a1g(d) ionization energy calculated by the DeltaSCF method using CNDO/2 total energies are in a good agreement with the experimental data.

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Reference：
Iron Catalysis in Organic Synthesis | Chemical Reviews,
Iron Catalysis in Organic Synthesis: A Critical Assessment of What It Takes To Make This Base Metal a Multitasking Champion

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An ultrasensitive electrochemical biosensor for detecting microRNAs is fabricated based on hollow molybdenum disulfide (MoS2) microcubes. Duplex-specific nuclease, enzyme and electrochemical?chemical?chemical redox cycling are used for signal amplification. Hollow MoS2 microcubes constructed by ultrathin nanosheets are synthesized by a facile template-assisted strategy and used as supporting substrate. For biosensor assembling, biotinylated ssDNA capture probes are first immobilized on Au nanoparticles (AuNPs)/MoS2 modified electrode in order to combine with streptavidin-conjugated alkaline phosphatase (SA-ALP). When capture probes hybridize with miRNAs, duplex-specific nuclease cleaves the formative duplexes. At the moment, the biotin group strips from the electrode surface and SA-ALP is incapacitated to attach onto electrode. Then, ascorbic acids induce the electrochemical?chemical?chemical redox cycling to produce electrochemical response in the presence of ferrocene methanol and tris (2-carboxyethyl) phosphine. Under optimum conditions, the proposed biosensor shows a good linear relationship between the current variation and logarithm of the microRNAs concentration ranging from 0.1 fM to 0.1 pM with a detection limit of 0.086 fM (S/N=3). Furthermore, the biosensor is successfully applied to detect target miRNA-21 in human serum samples.

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Reference：
Iron Catalysis in Organic Synthesis | Chemical Reviews,
Iron Catalysis in Organic Synthesis: A Critical Assessment of What It Takes To Make This Base Metal a Multitasking Champion

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The electrochemical reduction of carbon dioxide is very much in the focus of interest today. Intensive research is carried out in leading laboratories trying to work out methods for making useful materials from this unwanted greenhouse gas using solar or wind power generated excess electric energy. In this work, electrochemical reduction experiments are carried out in homemade cells supplied with different metal electrodes. Electrolytes containing carbon dioxide absorbing components like monoethanolamine (MEA) or KHCO3, KOH, and K2CO3 solutions are used. Metal-containing species were noticed in the used electrolytes after being in contact with the metal working electrodes. Therefore parallel to the electrochemical measurements, the metal components in the electrolyte were checked with atomic absorption methods for getting better insight into the nature of the electrode passivation. This paper attempts to compare the behavior of different electrode materials (copper, nickel) in CO2 capturing media, and investigate of the products of the electrolysis using Scanning Electrochemical Microscopy (SECM), Atomic Absorption Spectroscopy (AAS) and gas chromatography.

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Reference：
Iron Catalysis in Organic Synthesis | Chemical Reviews,
Iron Catalysis in Organic Synthesis: A Critical Assessment of What It Takes To Make This Base Metal a Multitasking Champion

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Experimental charge density analysis of three symmetrically substituted ferrocene derivatives: 1,?- dimethyl ferrocene (1), decamethyl ferrocene (2), and 1,?-diacetyl ferrocene (3) was conducted. The electron donating or accepting propensities of the ferrocene substituents were evaluated. The metal ligand interactions in all analyzed compounds were found to be similar in terms of charge density concentrations at Bond Critical Points (BCPs), laplacian values, and deformation density features. The monopole population of iron in all cases tend to be slightly negative, suggesting charge donation from Cp ligands. d orbital populations in all cases adopt values in agreement with theoretical calculations and ligand field theory. The charge distribution over analyzed molecules does not correlate with the formal oxidation potential in the analyzed compounds, as compound 2 in the currently studied structure takes the place suitable for an unsubstituted ferrocene. The non-intuitive low energy of the eclipsed conformation of 1 compound finds some explanation in the existence of a bond critical point between atoms of the two methyl groups in the structure. An asymmetry of the atomic surroundings of the two oxygen atoms in the 3 structure, reflected by the differences in charge rho(rBCP) and ?2rho(rBCP) values and the shape of deformation density in the regions of oxygen lone electron pairs, is described.

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Reference：
Iron Catalysis in Organic Synthesis | Chemical Reviews,
Iron Catalysis in Organic Synthesis: A Critical Assessment of What It Takes To Make This Base Metal a Multitasking Champion