Category: 1271-48-3

HPLC of Formula: C12H10FeO2, Academic researchers, R&D teams, teachers, students, policy makers and the media all rely on us to share knowledge that is reliable, accurate and cutting-edge. In a document type is Article, and a compound is mentioned, 1271-48-3, name is 1,1′-Ferrocenedicarboxaldehyde, introducing its new discovery.

The preparation of 1,1?-bis(beta-hydroxyethyl)ferrocene (1) by oxidation of 1,1?-divinylferrocene is described. Compound 1 has been characterized by 1H and 13C{1H} NMR, and cyclic voltammetry. The electrochemical data are compared to ferrocene and the closely related 2-ferrocenylethanol, 2.

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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

COA of Formula: C12H10FeO2, Academic researchers, R&D teams, teachers, students, policy makers and the media all rely on us to share knowledge that is reliable, accurate and cutting-edge. In a document type is Article, and a compound is mentioned, 1271-48-3, name is 1,1′-Ferrocenedicarboxaldehyde, introducing its new discovery.

Reaction of ferrocene-1,1?-dicarbaldehy de and propylenediamine yields the Schiff-base derivative 1,1?-(2,6-diazahepta-1,6-diene)-ferrocene (1). The molecular structure of 1 has been determined by single crystal X-ray analysis. It crystallises in the monoclinic system, space group P21/c, a=13.507(3), b=9.800(2), c=10.086(2) A, beta=110.81(3), Z=4 and V=1248.0(5) A3. Refinement of the atomic parameters by least-squares techniques gave a final R factor of 0.074 for 1588 observed reflections having 1>2sigma(1), Hydrogenation of 1 with LiA1H4 results in the parent amine 1,1?-(2,6-diazaheptane)ferrocene (2). The protonation of 2 has been investigated by potentiometry in water in the pH range 11-6. At pH lower than 6, 2 is unstable in solution. The E1/2 potential for 2 is pH-dependent (E1/2(pH 11) = 255, E1/2(pH 6) =435 mV). A similar behaviour was also observed in THF:water (60:40 vol./vol.). The electrochemical behaviour for 1 and 2 has also been studied in CH2Cl2.

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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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Title full: Synthesis and characterization of 1,1?-bis[(N-methyl-N-phenyl)aminomethyl(ethyl)]ferrocenes. Crystal structures of [Fe{(eta5-C5H4)-C(C6H 5){double bond, long}N-CH2C6H4CH3-4} 2] and 2[Fe{(eta5-C5H4)-CH2N (CH3)-C6H4OCH3-4}2] · 1/4H2O. Direct or catalytic condensation of diacylferrocenes (acyl = formyl, acetyl, and benzoyl) and anilines or benzylamines with titanium tetrachloride as a catalyst resulted in the corresponding diimines 1-3, respectively. Reduction of these imines with sodium borohydride or lithium aluminum hydride/aluminum chloride in THF yielded 1,1?-bis[(N-phenyl)aminomethyl(ethyl)]ferrocenes (4, 5) and 1,1?-bis[(N-benzyl)aminobenzyl]ferrocenes (6), respectively. Reductive methylation of 4-6 with aqueous formaldehyde, cyanoborohydride and acetic acid only afforded 1,1?-bis[(N-methyl-N-phenyl)aminomethyl(ethyl)]ferrocenes (7, 8). 1,1?-Bis[{(N-methyl-N-benzyl)amino}benzyl]ferrocenes (9) were not obtained, probably due to their debenzylation under the acidic conditions. The molecular structures of 3g and 7a were determined by single crystal X-ray analysis.

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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 synthesis, X-ray structure and magnetic properties of two new ferrocene substituted nitroxide monoradicals are described. The magnetic susceptibility data was nicely fitted in both cases to the Curie-Weiss law yielding the Weiss constants of theta=-1.8 and -1.1 K for radicals 1 and 2, respectively. This result evidenced the presence of very weak antiferromagnetic intermolecular interactions between neighbor molecules. Moreover, the X-ray structure of the key precursor 2,3-bis(hydroxyamino-)-2,3-dimethylbutane (3) is also included.

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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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Carbonylrhenium bromide complexes fac-Br(OC)3ReL2 (3a,b, 4a,b) and cis-Br(OC)4ReL (5a,b) with conjugated pyridines L = Fc-CH=CH-p-C5H4N (1a), Fc-CH=CHC-(CH3)=CHCH=CHCH=C(CH3)CH=CH-p-C5H4N (1b), 1,1′-Fc(-CH=CH-p- C5H4N)2 (1c), p-Me2N-C6H4-CH=CHCH=CH-p-C5H4N (2a), and p-Me2N- C6H4-CH=CHC(CH3)=CHCH=CHCH=C(CH3)-CH=CH-p-C5H4N (2b) have been synthesized. The structures of 4a and 5a have been determined by X-ray diffraction analysis. Compound 4a exhibits a remarkable quadratic hyperpolarizability.

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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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Ferrocene-bridged bisporphyrins have been synthesized by the condensation of corresponding dipyrromethane-derived diols with a bisdipyrromethane. Purification of the final compounds has been achieved without chromatography. The specific geometry of these bisporphyrins makes them valuable starting points for building complex molecular and supramolecular structures. In particular it provides a core to which multiple sites of attractive intermolecular interactions can be attached thereby creating compounds predisposed to form complex networks by association. We have studied the structure of bis-1,1?-(porphyrinyl)ferrocenes by 1H NMR, UV-Vis and electrochemistry. Results have shown that complex dynamic processes occur in these molecules (which may involve conformers, formation of H-aggregates and tautomers) and that they have non-typical electrochemical behaviour. 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

Chemical research careers are more diverse than they might first appear, Application of 1271-48-3, as there are many different reasons to conduct research and many possible environments. In a article, mentioned the application of 1271-48-3, Name is 1,1′-Ferrocenedicarboxaldehyde, molecular formula is C12H10FeO2

A novel conformationally modulated Intramolecular Electron Transfer (IET) phenomenon has been observed due to the cyclic structure of the diaza[2.2]ferrocenophane 3. The corresponding mixed-valence compound of 3, prepared by electrochemical or chemical partial oxidation, interestingly shows the appearance of two absorption bands In the near infrared (NIR) spectral region. These bands are attributable to two intervalence charge-transfer transitions associated to two atropoisomers exhibiting different energy for the IET process. A solvent and temperature control over the atropoisomeric equilibrium have also been observed. The experimental data and conclusions about both the conformational and the electronic properties of compound 3 are also supported by density functional theory calculations.

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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 complexes (E)- and (Z)-Fe(eta5-C5H4CHO) (eta5-C5H4CH=CH-C6 H4-4-NO2) [2-(E) and 2-(Z), respectively], (E)- and (Z)-Fe (eta5-C5H4CHO) (eta5-C5H4CH=CH-C6 H4-4-CN) [3-(E) and 3-(Z), respectively], (E,E)-, (E,Z)-, and (Z,Z)-Fe(eta5-C5H4CH=CHC6 H4-4-NO2)2 [4-(E,E), 4-(E,Z), and 4-(Z,Z), respectively], (E,E)-, (E,Z)-, and (Z,Z)-Fe(eta5-C5H4CH=CHC6 H4-4-CN)2 [5-(E,E), 5-(E,Z), and 5-(Z,Z), respectively], and Fe(eta5-C5H5) (eta5-C5H4-(E)-CH=CH-4-{ (eta6H4Cr(CO)3}- (E)-CH=CH-eta5-C5H4)Fe (eta5-C5H5) (7) have been synthesized. Structural studies on 2-(E), 4-(E,Z), 5-(E,E), Fe(eta5-C5H5) {eta5-C5H4- (E)-CH=CH-4-C6H4- (E)-CH=CH-eta5-C5H4}Fe (eta5-C5H5) (6) and 7 have been performed. Electrochemical studies of 2-5 reveal trends in the oxidation potentials which are consistent with the more effective conjugation of the (E) isomers, and the better electron-accepting character of NO2 than CN and of CHO than H. Powder SHG measurements by the Kurtz technique using fs pulses at the telecommunications wavelength of 1.3 mum reveal low responses for 4-(E,E), 5-(E,E), and 7. Third-order NLO measurements by Z-scan using fs pulses at 800 nm suggest an increase in [lambda] on increasing the electron-acceptor strength [when proceeding from 5-(E,Z) to 4-(E,Z), CN is replaced by NO2], and on introduction of the Cr(CO)3 unit, when proceeding from 6 to 7.

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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

Chemical research careers are more diverse than they might first appear, Application of 1271-48-3, as there are many different reasons to conduct research and many possible environments. In a article, mentioned the application of 1271-48-3, Name is 1,1′-Ferrocenedicarboxaldehyde, molecular formula is C12H10FeO2

A series of bismacrocyclic ligands with two ferrocenyl groups, exolendo-1,1?1?1?-[l,2,4,5-tetrakis(5-aza-2-thiahexa-5-enyl) benzene]bisferrocene(exolendo-FeBeFe), 1,1?1?1?-[1,2:1?,2?-tetrakis(5-aza-2-thiahexa-5- enyl)-ethene]bisferrocene(1,2-FeEnFe), 1,1?1?1?-[1,1?:2,2?-tetrakis(5-aza-2-thiahexa-5- enyl)ethene]bisferrocene (1,1-FeEnFe), 1,1?1?1?-[tetrakis(5-aza-2-thiahexa-5-enyl)methane] bisferrocene (FeMeFe), and their dicopper(I) compounds have been synthesized and characterized (electrochemistry, IR, NMR and Moessbauer spectroscopy). The molecular structure of endo-FeBeFe has been determined by X-ray structure analysis and the copper(I)-induced discrimination of the exo- and endo-isomers of FeBeFe has been investigated by 1H NMR spectroscopy. The interaction between copper and iron in the tetranuclear compounds is discussed on the basis of the electrochemical and spectroscopic 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

With the volume and accessibility of scientific research increasing across the world, it has never been more important to continue building the reputation for quality and ethical publishing we’ve spent the past two centuries establishing.In an article, 1271-48-3, molcular formula is C12H10FeO2, belongs to iron-catalyst compound, introducing its new discovery., Safety of 1,1′-Ferrocenedicarboxaldehyde

A number of 1,1?-bis(benzo-1,3-dithiol-2-ylidene)ferrocene derivatives 7a-b and 12-14 based on the strong electron donating ability of 1,3-dithiole and ferrocene moieties were synthesized as new pi-donors. The structure and physical properties of these compounds were characterized both by experimental techniques and spectral analysis. These new classes of donor compounds were obtained in very high yields based on modification of the Wittig-Horner reaction and the 1,3-dithiole rings were separated by conjugated spacers including aryl-ferrocenyl- aryl. The electrochemical properties of the new compounds have been studied in comparison to DB-TTF 4 analogues, and the parent ferrocene donor by cyclic voltammetry (CV), using Pt electrode as the working electrode in CH2Cl2 solutions at room temperature. Three subsequent oxidation processes are observed as three oxidation waves associated only with two reduction processes. Polycrystalline samples of 14a-b are conducting sigma rt 14a=0.2 S cm-1 and sigma rt 14b=4.8×10-4 S cm-1) respectively, while compounds 15 and 16 were found essentially as insulator (sigma rt<10-10 S cm-1). The result showed that such a combination of chemo- and biocatalysis improved the catalytic yield more than two times compared with that of sole metal catalysis. We will look forword to the important role of 1271-48-3, and how the biochemistry of the body works.Safety of 1,1′-Ferrocenedicarboxaldehyde

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