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We report an improved synthesis of 1,1?-diaminoferrocene, employing the reduction of 1,1?-diazidoferrocene with H2-Pd/C, along with extensive characterization data for both compounds. Diaminoferrocene undergoes a reversible 1e- oxidation in CH3CN at a potential of -602 mV vs Fc0/+, one of the most negative redox potentials for a ferrocene derivative. The chemical reversibility of this process was confirmed by isolation of the stable, 17-electron [Fc(NH2)2]+ cation as PF6-, OTf-, and TCNE- salts. In the solid state, diaminoferrocene exists in two conformations: one with the NH2 groups eclipsed, and the other with the NH2 groups offset by one-fifth turn around the Cp-Fe-Cp axis. Diazidoferrocene, on the other hand, exhibits only the fully eclipsed conformation in the solid state. The Fe-Cp(centroid) vectors in the diazidoferrocene molecules are roughly aligned with the crystallographic c-axis, and the molecules form layers perpendicular to this axis. The compound is thermally unstable at elevated temperatures, and rapid heating above its melting point results in explosion.

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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 concerns a process for the manufacture of substituted propionic acids comprising providing a substrate of formula (I): And subjecting the substrate to enantioselective hydrogenation under enantioselective hydrogenation conditions in the presence of an enantioselective hydrogenation catalyst comprising a catalyst ligand having a metallocene group with a chiral phosphorus or arsenic substituent to provide in enantiomeric excess a product of formula (II): or its enantiomer or if applicable its diastereomer.

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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

You could be based in a university, combining chemical research with teaching; in a pharmaceutical company, working on developing and trialing new drugs; Quality Control of 1,1′-Dibromoferrocene, or in a public-sector research center, helping to ensure national healthcare provision keeps pace with new discoveries.In a article, mentioned the application of 1293-65-8, Name is 1,1′-Dibromoferrocene, molecular formula is C10Br2Fe

The reduction of ferrocene phosphino-aldehydes, R2PfcCHO (R = Ph, 2; Cy, 3; fc = ferrocene-1,1?-diyl, Cy = cyclohexyl) and (S p)-[Fe(eta5-C5H3-1-CHO-2-PPh 2)(eta5-C5H5)] ((S p)-4), with BH3·THF or BH3· SMe2 in THF at 0 C selectively afforded the corresponding phosphinoalcohol-borane adducts, R2PfcCH2OH·BH 3 (R = Ph, 5; Cy, 6) and (Sp)-[Fe(eta5-C 5H3-1-CH2OH-2-PPh2) (eta5-C5H5)]·BH3 ((S p)-7), in quantitative yields. In contrast, the reactions performed at elevated temperatures favoured the formation of methyl derivatives (e.g., Ph2PfcCH3·BH3 (8)) resulting from overreduction (deoxygenation). The crystal structures of 3, 5, (S p)-7, 8 and Cy2PfcBr (9) have been determined by single-crystal X-ray diffraction analysis. The crystal assemblies of adducts 5 and (Sp)-7 are built up by means of C-H…O contacts, O-H…HB dihydrogen bonds and other soft interactions but, surprisingly, not via the conventional O-H…O hydrogen bonds. Adduct 5 was smoothly deprotected to give the corresponding free phosphine, Ph2PfcCH 2OH (1), and was further used for the preparation of a hybrid phosphinoether ligand, Ph2PfcCH2OMe (11). The latter compound was studied as a donor for Group 8-10 metal ions and for Cu(i), whereupon the following complexes were isolated and structurally characterised: [(eta6-p-cymene)RuCl2(11-kappaP)] (12*), [(eta6-p-cymene)RuCl(11-kappaP)(MeCN)][SbF6] (13*), [RhCl(cod)(11-kappaP)] (cod = eta2: eta2-cycloocta-1,5-diene; 14), trans-[PdCl2(11-kappaP) 2] (trans-15*), [PdCl(mu-Cl)(11-kappaP)]2 (16*), cis- and trans-[PtCl2(11-kappaP)2] (cis-17 and trans-17*), and [Cu(CF3SO3-kappaO)(11- kappaP)(H2O)] (18) (the asterisk indicates that the crystal structure was determined). In all these compounds, ligand 11 behaves as a P-monodentate donor while its ether group remains uncoordinated. This probably reflects structural flexibility of 11 resulting from the presence of the methylene linker and also distinguishes 11 from its known, non-spaced analogue Ph2PfcOMe.

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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

You could be based in a university, combining chemical research with teaching; in a pharmaceutical company, working on developing and trialing new drugs; Application of 1293-65-8, or in a public-sector research center, helping to ensure national healthcare provision keeps pace with new discoveries.In a article, mentioned the application of 1293-65-8, Name is 1,1′-Dibromoferrocene, molecular formula is C10Br2Fe

The synthesis of 1-bromo-1?-aminoferrocene is reported using a simple synthetic methodology. This compound serves as a useful precursor to other heterosubstituted aminoferrocenes. For example, (1?-amino)ferrocenecarboxylic acid has been obtained and is conveniently isolated in its C-protected form by lithiation of 1-bromo-1?-aminoferrocene, quenching with solid carbon dioxide and esterification of the resulting carboxylate with methanolic HCl. The new ligand 1-diphenylphosphino-1?-aminoferrocene has also been obtained using a similar methodology.

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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 relates to a dye compound consisting of four cyclically linked components, the four components comprising at least one linker compound. According to the invention the at least one linker compound is selected from a first linker compound or a second linker compound, the first linker compound having an aromatic carboxylic acid or an alkyl ester thereof, the aromatic group being bonded to fumaronitrile, and the second linker compound having an aromatic carboxylic acid or an alkyl ester thereof, the aromatic group being bonded to phthalonitrile.

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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, Recommanded Product: 1293-65-8, as there are many different reasons to conduct research and many possible environments. In a article, mentioned the application of 1293-65-8, Name is 1,1′-Dibromoferrocene, molecular formula is C10Br2Fe

The preparations of multinuclear supramolecules assembled from 1,1?-bis(terpyridyl)ferrocene, 1,1?-bis(terpyridyl)biferrocene, and 1,1?-bis(terpyridyl)triferrocene (tpy-(fc)n-tpy, n = 1-3) redox-active moieties with Ru2+ metal centers are described. The electrochemical measurements of the Ru2+ complexes of tpy-(fc) n-tpy (1a (n = 1); 1b (n = 2); 1c (n = 3)) are dominated by the Ru2+/Ru3+ redox couple (E1/2 from 1.35 to 1.38 V), Fe2+/Fe3+ redox couples (E1/2 from ?0. 4 to ?1.0 V), and tpy/tpy-/tpy2- redox couples (E 1/2 from -1.3 to -1.5 V). The appreciable variations detected in the Fe2+/Fe3+ oxidation potentials indicate that there is an interaction between the spacer and the Ru2+ metal centers. Coordination of Ru2+ metal centers to tpy-(fc)n-tpy results in a red-shifted and more intense 1[(d(pi) Fe)6] ? 1[(d(pi)Fe) 5] – (pi*tpyRu)1] transition in the visible region. The observed red-shifted absorption from 526 nm in the monomeric [Ru(fctpy)2]2+ complex to ?560 nm in 1b and 1c reveals that there is a qualitative electronic coupling within the ferrocenyl array. The Fe-Fe interactions result in a red characteristic of the 1[(d(pi)Fe)6] ? 1[(d(pi)Fe)5(pi*tpy Ru)1] MMLCT transition.

The prevalence of solvent effects in heterogeneous catalysis in condensed media has motivated developing theoretical assessments of solvent structures and their interactions with reaction intermediates and transition states. Recommanded Product: 1293-65-8, You can get involved in discussing the latest developments in this exciting area about 1293-65-8

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 1293-65-8, as there are many different reasons to conduct research and many possible environments. In a article, mentioned the application of 1293-65-8, Name is 1,1′-Dibromoferrocene, molecular formula is C10Br2Fe

Starting from doubly lithiated ferrocene [Fe(eta5-C 5H4)2]3Li6(tmeda) 2 (1), the corresponding thf adduct [Fe(eta5-C 5H4)2]2Li4(thf) 6 (3) was prepared by recrystallization of 1 from thf. In contrast to 1, which features six Li+ cations surrounded by 1,1?- ferrocenediyl fragments in a carousel arrangement, compound 3 contains only two ferrocenediyl anions bridged by four Li+ cations. This comparison clearly reveals the strong impact of different supporting ligands on the solid-state structures of lithiated ferrocenes. The doubly magnesiated and zincated derivatives [Fe(eta-C5H4) (tmeda)2 (4) and [Fe(eta5-C5H4)2] 2Zn2(tmeda)2 (6) were synthesized via salt metathesis using 1 and MgCl2 or ZnCl2, respectively. Even though Mg2+ and Zn2+ are chemically related ions, the solid-state structures of 4 and 6 turned out to be distinctly different. Compound 4 possesses a cluster structure reminiscent of the lithiated aggregate 1, whereas 6 represents the first example of a first-row transition metal-bridged [1.1]-ferrocenophane (anri-conformation). All three doubly metallated ferrocenes 3, 4, and 6 are suitable reagents for the preparation of 1,1?-disubstituted ferrocenes as has been exemplified for the synthesis of Fe(eta5-C5H4SiMe3)2 (5). We have also shown that 5 can be generated in yields exceeding 90% from Fe(eta;5-C5H4Br)2, Me 3SiCl, and Rieke magnesium.

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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 convenient new method is developed for the preparation of 1?,1?-disubstituted biferrocenes which can be oxidized with iodine to a new series of mixed-valence compounds. The X-ray structures of 1?,1?-dimethoxymethyl, 1?,1?-diethoxyl, 1?,1?-dimethyl, 1?,1?-dihydroxymethyl, 1?,1?-dibenzoyloxymethyl, 1?,1?-dimethylthio, and 1?,1?-diethylthio neutral biferrocenes and the mixed-valence 1?,1?-diethoxyl, 1?,1?-dimethyl, 1?,1?-dibenzoyloxymethyl, and 1?,1?-diphenylthio biferrocenium triiodide salts have been determined at 298 K. The rates of intramolecular electron transfer in these mixed-valence cations were estimated by variable-temperature 57Fe Moessbauer experiment.

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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

HPLC of Formula: C10Br2Fe, Chemistry graduates have much scope to use their knowledge in a range of research sectors, including roles within chemical engineering, chemical and related industries, healthcare and more. 1293-65-8, Name is 1,1′-Dibromoferrocene, molecular weight is 335.76. In an Article，once mentioned of 1293-65-8

A facile synthetic approach is reported for the synthesis of dissymmetric 1,2-ferrocenediyl Lewis acids and mixed acid-base pairs including the first example of a 1-phosphino-2-borylferrocene; the use of non-racemic electrophiles allows for the isolation of single diastereomer products.

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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

While the job of a research scientist varies, most chemistry careers in research are based in laboratories,Safety of 1,1′-Dibenzoylferrocene, where research is conducted by teams following scientific methods and standards. In a patent，Which mentioned a new discovery about 12180-80-2

Lithium tert-alkylperoxyacetylides were reacted with acetyl-, benzoyl, and 1,1?-dibenzoylferrocenes to obtain previously unknown ferrocene-containing acetylenic mono- and diperoxy alcohols. Thermal stability of the products was evaluated.

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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