Category: 1293-65-8

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Simple Synthesis and Chemicophysical Properties of Polyoxaferrocenophanes and Its Alkali Metal Complexes

Polyoxaferrocenophanes were synthesized by a one-pot reaction of 1,1′-diacetoxyferrocene with dichloride.Crystalline 1 : 1 complexes of 3a with LiSCN, NaSCN, and KSCN were isolated.The 1H-NMR and Moessbauer spectra of these complexes suggest the possibility of a certain interaction between the iron atom of the ferrocene nuclei and complexed cation.The new type of ferrocenophane 3a extracts thallium ion most effectively, the extractability of several metal ions being in this order; Tl+ > Rb+ > K+ > Cs+ > Na+.

Simple Synthesis and Chemicophysical Properties of Polyoxaferrocenophanes and Its Alkali Metal Complexes

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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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COMPARISON OF THE ELECTRONIC STRUCTURE OF DISUBSTITUTED FERROCENES.

We have measured the optical absorption of gaseous ferrocene, 1,1 prime -dimethylferrocene, 1,1 prime -dibromoferrocene, and 1,1 prime -dichloroferrocene using synchrotron radiation. From these data we have estimated the ligand field parameters and noted increasing e//2//g(d) to Cp( pi ) overlap with increasing charge transfer from the Cp ring to the substitution. The optical absorption spectra for ferrocene, dibromoferrocene, and dichloroferrocene are remarkably similar. The halogen substitutions result in greater Cp( pi ) to e//2//g-(d(x2-y2)) hybridization. The e//2//g orbitals become more bonding while the a//1//g and e//1//g orbitals become more non-bonding or antibonding. This change is reflected in a change of the ligand field parameters.

COMPARISON OF THE ELECTRONIC STRUCTURE OF DISUBSTITUTED FERROCENES.

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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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Synthesis and some Propeties of ferrocene Derivatives having a Long Alkyl Chain. Formation of a Regularly oriented Organometallic Complex in Monolayer Assemblies

1′,6′-Bis(stearoyloxy)biferrocene was synthesized and its Langmuir-Blodgett film was prepared, in which film the cyclopentadienyl rings of a ferrocene nucleus were orientated perpendicular to the film surface.Oxiadtion of the biferrocene derivative gave the mixed velence monocation complex which formed a stable monolayer on water.

Synthesis and some Propeties of ferrocene Derivatives having a Long Alkyl Chain. Formation of a Regularly oriented Organometallic Complex in Monolayer Assemblies

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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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Ferrocenyl-substituted bicyclo[1.1.1]pentasilanes: Evaluation of significant interactions between ferrocenyl units and rigid silicon cages

Ferrocenyl-substituted bicyclo[1.1.1]pentasilanes 1, 2, and 3 were synthesized by the reactions of bromo-substituted bicyclo[1.1.1]pentasilanes with lithioferrocene. Significant interactions between bicyclo[1.1.1]pentasilane and ferrocenyl units were suggested by cyclic voltammetry, UVvis absorption spectrum, and theoretical calculations.

Ferrocenyl-substituted bicyclo[1.1.1]pentasilanes: Evaluation of significant interactions between ferrocenyl units and rigid silicon cages

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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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Stereoselective synthesis of ferrocene-based C2-symmetric diphosphine ligands: Application to the highly enantioselective hydrogenation of alpha-substituted cinnamic acids

(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).

Stereoselective synthesis of ferrocene-based C2-symmetric diphosphine ligands: Application to the highly enantioselective hydrogenation of alpha-substituted cinnamic acids

The proportionality constant is the rate constant for the particular unimolecular reaction. the reaction rate is directly proportional to the concentration of the reactant. I hope my blog about 1293-65-8 is helpful to your research. Related Products of 1293-65-8

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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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A new synthesis of diferrocenylketones

Diferrocenylketone (I) and <1.1>ferrocenophane-1,12-dione (II) have been obtained in 86percent and 13percent yields, respectively, via a simple route analogous to the Barbier synthesis involving N,N-disubstituted carbamylchlorides and the appropriate bromoferrocene derivatives.

A new synthesis of diferrocenylketones

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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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Ferrocenyl anthracenes: Synthesis and molecular structure

The synthesis of a series of ferrocenylanthracene derivatives is described, utilising the palladium catalysed coupling reaction of 1,1?-bis(chlorozincio)ferrocene with halo-anthracenes. Bis-1,1?-(9-anthracenyl)ferrocene (1) was characterised by single crystal X-ray diffraction and shows an eclipsed ferrocenyl geometry. X-ray crystallographic studies indicate that there are no clear stacking interactions of either an intra-or intermolecular nature between the anthracenyl rings in the structure. A series of 9-and 10-disubstituted ferrocenylanthracene derivatives has also been prepared. In each case the palladium catalyst (Pd(dppf)Cl2) is recovered in a modified form, e.g. as the [(dppf)PdBr(9-anthracenyl)] complex in the synthesis of bis-1,1?-(9-anthracenyl)ferrocene. The single crystal X-ray structure of one such palladium complex [(dppf)PdBr-{9-(10-chloroanthracenyl)}] (15a) has been determined in a case where chloride/bromide exchange had occurred in the palladium complex intermediate. The potential application of compound 1 as synthon for the construction of a molecular sensing device is discussed. Cyclic voltammetry and fluorescence studies have been carried out for selected derivatives.

Ferrocenyl anthracenes: Synthesis and molecular structure

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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 design and synthesis of a new potentially C3-symmetric ferrocenylphosphine

A new potentially C3-symmetric phosphine ligand ‘manphos’ has been obtained and fully characterized. The ligand which is a tri-ferrocenyl-tetra-phosphine is obtained in a simple and effective two step synthesis starting from 1,1?-dibromoferrocene via the intermediate compound tris-(1?-bromoferrocenyl)phosphine or alternatively via 1′-bromo-1-diphenylphosphinoferrocene. The iso -propylphosphino-analogue of manphos, tris-(1′-diisopropylphosphinoferrocenenyl)phosphine, has also been obtained, in addition to several functionalised derivatives of triferrocenylphosphine where the ferrocene rings have been substituted in the 1?-position.

The design and synthesis of a new potentially C3-symmetric ferrocenylphosphine

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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 synthesis and metal coordination chemistry of a novel phosphine- and thiolate-substituted ferrocenediyl ligand

The synthesis and metal coordination chemistry of a phosphine- and thiolate-substituted ferrocenediyl ligand were discussed. Bridged dimeric species, with the thiolate S adopting a binucleating role were found to be observed for Pd(II) and Rh(I) metal centers while a mononuclear, square planar Ni(II) complex was formed on reaction of the ligand with [Ni-(TMEDA)Me2]. It was found that the rhodium complexes with phosphorus-sulfur donor ligands showed excellent activities and stability as methanol carbonylation catalysts.

The synthesis and metal coordination chemistry of a novel phosphine- and thiolate-substituted ferrocenediyl ligand

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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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FERROCENEDIPHOSPHINES

Compounds of the formula I in the form of enantiomerically pure diastereomers or a mixture of diastereomers, (I), where the radicals R1 are identical or different and are each C1-C4-alkyl; m is 0 or an integer from 1 to 3; n is 0 or an integer from 1 to 4; R2 is a hydrocarbon radical or a C-bonded heterohydrocarbon radical; Cp is unsubstituted or C1-C4-alkyl-substituted cyclopentadienyl; Y is a C-bonded chiral group which directs metals of metallation reagents into the ortho position; and Phos is a P-bonded P(III) substituent. The compounds are chiral ligands for complexes of transition metals which are used as homogeneous catalysts in asymmetric syntheses.

FERROCENEDIPHOSPHINES

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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