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Isomeric phosphinoferrocene ligands, viz. 1?-(diphenylphosphino)-1-cyanoferrocene (1) and 1?-(diphenylphosphino)-1-isocyanoferrocene (2), show markedly different coordination behaviours. For instance, the reactions of 1 with [PdCl2(MeCN)2] and [(LNC)Pd(mu-Cl)]2 (LNC = [2-(dimethylamino-kappaN)methyl]phenyl-kappaC1) produced the ?phosphine? complexes [PdCl2(1-kappaP)2] (7) and [(LNC)PdCl(1-kappaP)] (8), and the latter was converted into the coordination polymer [(LNC)Pd(mu(P,N)-1)][SbF6] (9). Conversely, the reaction of 2 with [(LNC)Pd(mu-Cl)]2 involved coordination of the phosphine moiety and simultaneous insertion of the isocyanide group into the Pd-C bond, giving rise to the P,eta1-imidoyl complex [PdCl(Ph2PfcN?CC6H4CH2NMe2-kappa3C,N,P)] (10; fc = ferrocene-1,1?-diyl). Compound 10 was further transformed into the Fischer carbene [PdCl(Ph2PfcN(Me)CC6H4CH2NMe2-kappa3P,C,N)][BF4] (11) by methylation with [Me3O][BF4]. The reactions of 2 with Pd-Me and Pd(eta3-allyl) precursors also led to imidoyl complexes [Pd(mu-Cl)(Ph2PfcN?CR-kappa2C,P)]2 (R = Me: 12, R = allyl: 15), which were cleaved with PPh3 into the corresponding monopalladium complexes [PdCl(PPh3)(Ph2PfcN?CR-kappa2C,P)] (R = Me: 13, R = allyl: 16). The treatment of 12 and 15 with thallium(i) acetylacetonate (acac) produced [Pd(acac-O,O?)(Ph2PfcN?CR-kappa2C,P)] (R = Me: 17, R = allyl: 18). Through proton transfer, these complexes reacted with Ph2PCH2CO2H, ultimately producing bis-chelate complexes [Pd(Ph2PCH2CO2-kappa2O,P)(Ph2PfcN?CR)] (R = Me: 19, R = prop-1-enyl (sic!): 20). In addition, compound 13 was converted into the P-chelated carbene [PdCl(PPh3)(Ph2PfcN(Me)CMe-kappa2C,P)][BF4] (14). Compounds 10, 11, 13 and 14 were studied by cyclic voltammetry and by DFT computations.

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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,Application In Synthesis of 1,1′-Dibromoferrocene, where research is conducted by teams following scientific methods and standards. In a patent，Which mentioned a new discovery about 1293-65-8

A general method for the preparation of ferrocenylamines involves the reactions of ferrocenyl bromide, FcBr*, with the sodium salt of an amine or amide in the presence of copper(I)bromide/pyridine.The syntheses of diferrocenylphenylamine and triferrocenylamine, NFc2Ph and NFc3, respectively, are reported, and the hydrolysis of N-ferrocenyl acetamide to give ferrocenylamine, NH2Fc, is described.The system of the ferrocenyl- and/or phenyl-substituted derivatives of ammonia, NFcnX3-n (n=0-3; X=H, Ph), is characterised on the basis of mass, UV VIS and in particular of 1H and 13C NMR 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

You could be based in a university, combining chemical research with teaching; in a pharmaceutical company, working on developing and trialing new drugs; Electric Literature 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

Palladium catalyzed Negishi, Suzuki and Stille cross-coupling reactions of enantiopure 2,2?-diiodo-1,1?-binaphthyl with the corresponding 1,1?-dimetalloferrocenes gave the C2-symmetric binaphthyl bridged ferrocene 1-1,1?-(1,1?-binaphthyl-2,2?-diyl)ferrocene (1). The latter was obtained by Stille coupling with the bis(trimethylstannyl) derivative but not with the bis(tributylstannyl) one. Products of alkyl group transfer from tin to binaphthyl were obtained as the main products in both cases. The stereochemical result of these cross-coupling reactions in the positions 2 and 2? of 1,1?-binaphthyl depends on the reactivity of 1,1?-dimetalloferrocenes. Negishi coupling proceeds stereoconservatively (affording enantiopure product 1). Complete racemization of binaphthyl moiety occurs during the reactions with less reactive boron and tin organometallics. Proposed different reaction pathways include C1-symmetric palladium(II) intermediate in the former and configurationally unstable C2-symmetric pallada(IV)cyclic intermediate in the latter cases. In contrast to the cross-coupling reactions, free radical arylation of ferrocene with enantiopure 1,1?-binaphthyl-2,2?-bisdiazonium salt gave predominantly oligomeric binaphthyl bridged ferrocenes and only traces of the partially racemized product 1.

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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 engineers ensure the efficiency and safety of chemical processes, adapt the chemical make-up of products to meet environmental or economic needs, and apply new technologies to improve existing processes. Application of 1293-65-8. Catalysts allow a reaction to proceed via a pathway that has a lower activation energy than the uncatalyzed reaction. Introducing a new discovery about 1293-65-8, Name is 1,1′-Dibromoferrocene

For a series of ferrocenyl thiophenes of type Fe(eta5-C5H4-(4-R-cC4H2S-3-yl))(eta5-C5H4-(C6H3-3,5-(CF3)2) [R = H (3a), OMe (4a)], Fe(eta5-C5H4-(4-R-cC4H2S-3-yl)(eta5-C5H4-CHO) [R = H (3b), OMe (4b)], and Fe(eta5-C5H4-(4-R-cC4H2S-3-yl)(eta5-C5H4-C?N) [R = H (3c), OMe (4c)], the influence of electron-withdrawing substituents at the ferrocenyl moiety and electron-donating groups at the thiophene unit on the electronic behavior of 3a-c and 4a-c is reported. The coupling of the ferrocenyl and the thiophene moieties has been realized using the Negishi C,C cross-coupling reaction protocol. Compounds 3a and 4c were structurally characterized by single-crystal X-ray diffraction studies. In electrochemical measurements the ferrocenyl redox potential depends on the particular substitution at the ferrocenyl and the thiophene unit. Moreover, UV/Vis/NIR studies showed ligand-to-metal charge transfer (LMCT) interactions, which occur after oxidation and are shifted bathochromically as the donor-acceptor energy gap decreases. Using different substituents, possessing electron-withdrawing or donating capabilities, allows adjusting the energy difference between the ferrocenium-acceptor unit and the donating thiophene system.

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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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We report the synthesis and full characterization of the entire haloferrocene (FcX) and 1,1?-dihaloferrocene (fcX2) series (X = I, Br, Cl, F; Fc = ferrocenyl, fc = ferrocene-1,1?-diyl). Finalization of this simple, yet intriguing set of compounds has been delayed by synthetic challenges associated with the incorporation of fluorine substituents. Successful preparation of fluoroferrocene (FcF) and 1,1?-difluoroferrocene (fcF2) were ultimately achieved using reactions between the appropriate lithiated ferrocene species and N-fluorobenzenesulfonimide (NFSI). The crude reaction products, in addition to those resulting from analogous preparations of chloroferrocene (FcCl) and 1,1?-dichloroferrocene (fcCl2), were utilized as model systems to probe the limits of a previously reported “oxidative purification” methodology. From this investigation and careful solution voltammetry studies, we find that the fluorinated derivatives exhibit the lowest redox potentials of each of the FcX and fcX2 series. This counterintuitive result is discussed with reference to the spectroscopic, structural, and first-principles calculations of these and related materials.

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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

Some examples of the diverse research done by chemistry experts include discovery of new medicines and vaccines,and development of new chemical products and materials. In a article, mentioned the application of 12180-80-2, Name is 1,1′-Dibenzoylferrocene, molecular formula is C24H10FeO2

Ferrocene-1,1′-diylbis(diphenylmethanol), , forms hydrogen-bonded host-guest adducts with a wide range of hydrogen-bond donors and acceptors.Adducts with a diol:guest ratio of 1:1 were formed by MeOH, EtOH, Me2SO, Me2NCHO, piperazine, and 4,4′-bipyridyl and 1:2 adducts by Me2SO, dioxane, pyridine and piperidine.The 1:1 adduct with MeOH has been shown to be triclinic, space group P<*> with a = 8.7624(3), b = 12.2797(6), c = 14.8773(8) Angstroem, alpha = 106.572(4), beta = 97.879(4), gamma = 100.873(4) deg with a final R of 0.044 for 4982 observed reflections.The structure consists of a centrosymmetric assembly of two molecules of diol and two molecules of the guest MeOH, hydrogen bonded together to form a chair conformation (OH)6 ring.The 1:2 adduct with pyridine has been shown to be monoclinic, space group C2/c with a = 16.6252(10), b = 11.1016(9), c = 20.9440(16) Angstroem, beta = 107.855(6) deg with a final R of 0.042 for 3260 observed reflections.In the structure the diol lies on a two-fold rotation axis with its hydroxyl hydrogens disordered and participating in both intramolecular O-H…O and intermolecular O-H…N hydrogen bonding with the two pyridine guest molecules.

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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

Chemistry involves the study of all things chemical – chemical processes, Electric Literature of 1293-65-8, chemical compositions and chemical manipulation – in order to better understand the way in which materials are structured, how they change and how they react in certain situations. In a patent，Which mentioned a new discovery about 1293-65-8

(Chemical Equation Presented) Chirality3: A new ferrocene-based diphosphine ligand is applied to the asymmetric hydrogenation of alpha-substituted cinnamic acids. The P-centered-, C-centered-, and planar-chiral ligand (RC,RC,SFc,S Fc,SP,SP)-1 displays unprecedented enantioselectivity in this Rh-catalyzed reaction (see scheme; cod = cycloocta-1,5-diene).

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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

SDS of cas: 1293-65-8, 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, 1293-65-8, molcular formula is C10Br2Fe, belongs to iron-catalyst compound, introducing its new discovery.

Ligands of the formula (I) secondary phosphine-Q-P(=O)HR1 (I) in the form of mixtures of diastereomers or pure diastereomers, in which secondary phosphine is a secondary phosphine group with hydrocarbon radicals or heterohydrocarbon radicals as substituents; Q is a bivalent bisaryl or bisheteroaryl radical with an axial chiral centre to which the two phosphorus atoms are bonded in the ortho positions to the bisaryl or bisheteroaryl bridge bond, or Q is a bivalent ferrocenyl radical with a planar chiral centre or without a planar chiral centre, to which the phosphorus atom of the secondary phosphine is bonded directly or via a C1-C4-carbon chain to a cyclopentadienyl ring, the -P*(=O)HR1 group is bonded either on the same cyclopentadienyl ring in ortho position to the bonded secondary phosphine or on the other cyclopentadienyl ring; P* is a chiral phosphorus atom, and R1 is a hydrocarbon radical, a heterohydrocarbon radical or a ferrocenyl radical, where R1 is a ferrocenyl radical with a planar chiral centre when Q is a ferrocenyl radical without a planar chiral centre. Metal complexes of these ligands are homogeneous catalysts for asymmetric addition reactions, particularly hydrogenations.

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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,Reference of 12180-80-2, where research is conducted by teams following scientific methods and standards. In a patent，Which mentioned a new discovery about 12180-80-2

The photolysis of 1,1?-diacylferrocenes Fc(COR)2 (Fc = Ferrocenyl, R = CH3,Ph) in the presence of 1,10-phenanthroline (phen) in deoxygenated acetonitrile under irradiation with visible light has been studied. In these photolysis systems the phen has two important roles to play: one is to stabilize the photo-liberated Fe2+ by coordination, and the other is to promote the photolysis through photo-ligand exchange. Under this condition the photoproducts were isolated in definite composition and characterized by single crystal X-ray diffraction, 1H NMR spectroscopy, IR spectroscopy, photolysis-cyclic voltammetry and elemental analysis. The mechanism of the reactions was demonstrated to be charge transfer from metal to acylcyclopentadienyl ring, leading to cleavage of the bond between them. The phen attacks the Fe2+ ion to give the stable tris (1,10-phenanthroline) iron(II) complex cation and the acylcyclopentadienyl ring detaches from the Fe2+ ion, giving the enolate anion in the outer sphere of the complex. Crystallographic data for photoproduct 1, [Fe(phen)3] (C5H4COCH3)2 ·CH3CN ·2H2O: triclinic, space group P-1 (No. 2), a=12.714(4), b=13.125(3), c= 14.946(5) A, alpha=106.45(1), beta=112.13(3), gamma=79.60(2). V=2208(1) A3, R = 0.041, RW = 0.052. Crystallographic data for photoproduct 2, [Fe(phen)3](C5H4COC6H 5)2 ·0.5C6H6 ·H2O: triclinic, space group P-1 (No. 2), a= 12.218 (4), b= 12.440 (3), c= 16.989 (2) A, alpha = 98.56(2), beta= 102.06(2), gamma= 100.98(3), V=2431(2) A3, R = 0.049, RW = 0.057.

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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

Career opportunities within science and technology are seeing unprecedented growth across the world, Recommanded Product: 1293-65-8, and those who study chemistry or another natural science at university now have increasingly better career prospects. In a patent，Which mentioned a new discovery about 1293-65-8

A mononuclear non-heme manganese(V)-oxo complex, [MnV(O)(TAML)]- (1), was synthesized by activating dioxygen in the presence of olefins with weak allylic C-H bonds and characterized structurally and spectroscopically. In mechanistic studies, the formation rate of 1 was found to depend on the allylic C-H bond dissociation energies (BDEs) of olefins, and a kinetic isotope effect (KIE) value of 16 was obtained in the reactions of cyclohexene and cyclohexene-d10. These results suggest that a hydrogen atom abstraction from the allylic C-H bonds of olefins by a putative MnIV-superoxo species, which is formed by binding O2 by a high-spin (S = 2) [MnIII(TAML)]- complex, is the rate-determining step. A Mn(V)-oxo complex binding Sc3+ ion, [MnV(O)(TAML)]–(Sc3+) (2), was also synthesized in the reaction of 1 with Sc3+ ion and then characterized using various spectroscopic techniques. The binding site of the Sc3+ ion was proposed to be the TAML ligand, not the Mn-O moiety, probably due to the low basicity of the oxo group compared to the basicity of the amide carbonyl group in the TAML ligand. Reactivity studies of the Mn(V)-oxo intermediates, 1 and 2, in oxygen atom transfer and electron-transfer reactions revealed that the binding of Sc3+ ion at the TAML ligand of Mn(V)-oxo enhanced its oxidizing power with a positively shifted one-electron reduction potential (DeltaEred = 0.70 V). This study reports the first example of tuning the second coordination sphere of high-valent metal-oxo species by binding a redox-inactive metal ion at the supporting ligand site, thereby modulating their electron-transfer properties as well as their reactivities in oxidation reactions.

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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