1277-49-2Relevant articles and documents
Synthesis of ferrocenylketyl radicals by chromium(II) complexes
Ratkovic, Zoran R.,Somsák, L.ászló,Micskei, K.ároly,Zucchi, Claudia,Pályi, Gyula
, p. 813 - 819 (2001)
Chromium(II)-imino-diacetate (IDA), -ethylenediaminetetra-acetate (EDTA) and -1,3-propanediamine-N,N′-diacetic-N,N′-dipropionate (PDADP) complexes were used as reagents in H2O-DMF solutions at 5pH7 for the preparation of ferrocenylketyl radic
Kinetics of the synthesis of the S-(1-ferrocenylethyl)thioglycolic acid
Scutaru, D.,Tataru, Lucia,Mazilu, I.,Scutaru, Brigitte,Lixandru, Tatiana,Simionescu, Cr.
, p. 99 - 102 (1989)
A systematic study of the reactions of a number of α-hydroxylated ferrocene derivatives with thioglycolic acid confirms that the reaction is extremely fast, viz., 15-20 min , as compared with earlier procedures (12 h) .The important kinetic parame
Model solid-state reactions for the formation of a peripheral layer of organometallic dendrimers. Solid-state α-ferrocenylethylation of phenols
Khrushcheva,Belousova,Loim,Sokolov
, p. 1106 - 1108 (2000)
With the aim of modifying solid dendrite structures, the solid-state reactions of (S)-(-)-(1-trimethylammonio)ethylferrocene iodide with substituted phenols were studied.
Enantiomeric-enriched ferrocenes: Synthesis, chiral resolution, and mathematic evaluation of CD-chiral selector energies with ferrocene-conjugates
Snegur, Lubov V.,Borisov, Yurii A.,Kuzmenko, Yuliya V.,Davankov, Vadim A.,Ilyin, Mikhail M.,Ilyin, Mikhail M.,Arhipov, Dmitry E.,Korlyukov, Alexander A.,Kiselev, Sergey S.,Simenel, Alexander A.
, (2017)
Enantiomeric-enriched ferrocene-modified pyrazoles were synthesized via the reaction of the ferrocene alcohol, (S)-FcCH(OH)CH3 (Fc = ferrocenyl), with various pyrazoles in acidic conditions at room temperature within several minutes. X-ray structural data for racemic (R,S)-1N-(3,5-dimethyl pyrazolyl)ethyl ferrocene (1) and its (S)-enantiomer (S)-1 were determined. A series of racemic pyrazolylalkyl ferrocenes was separated into enantiomers by analytical HPLC on βand γcyclodextrins (CD) chiral stationary phases. The quantum chemical calculations of interaction energies of βCD were carried out for both (R)- and (S)-enantiomers. A high correlation between experimental HPLC data and calculated interaction energies values was obtained.
Synthesis of 1-(1-ferrocenylethyl)-pyridinium chloride and its hybrid materials with lindquist ype polyoxometalates
Niu, Yujuan,Ren, Xiaoyu,Yin, Bin,Wang, Danjun,Xue, Ganglin,Hu, Huaiming,Fu, Feng,Wang, Jiwu
, p. 1863 - 1868 (2010)
A new ferrocene derivative, 1-(1-ferrocenylethyl)-pyridinium (fep = CpFeCp-CH(CH3)-Py+) chloride, and two charge ransfer salts (CTSs) based on the cationic fep donor and Lindqvist ype polyoxometalate acceptors, [fep]2[Mo6O19] (1) and [fep] 2[W6O19] (2), were synthesized. fepCl was characterized by elemental analysis, IR spectroscopy and 1H NMR and the two CTSs were characterized by elemental analysis, IR spectroscopy, UV-vis diffuse reflectance spectrum, cyclic voltammetry, fluorescence spectrum and single crystal X-ray diffraction. X-ray crystallographic studies of the brownish red CTSs 1 and 2 reveal that they are isostructural and crystallize in the monoclinic space group P21/n. In salts 1-2, fep and polyoxoanions are cocrystallized by Coulombic forces, and there also exist the complex C-H?π and π?π stacking interactions between the adjacent fep cations and C-H?O hydrogen bonds between the adjacent fep cations and polyanions. The UV-vis diffuse reflectance spectra indicate the presence of a broad charge ransfer band between 500 and 850 nm for 1-2, and CT character of 1 and 2 is also confirmed by the Mulliken correlation between the CT transition energies and the reduction potentials of the polyoxometalate acceptors. Two new hybrid materials based on 1-(1-ferrocenylethyl)-pyridinium donor and Lindqvist ype polyoxometalate acceptors were synthesized in high yields and their UV-vis diffuse reflectance spectra indicate the presence of a broad charge ransfer band between 500 and 850 nm.
Group 6 Metal Carbonyl Complexes Supported by a Bidentate PN Ligand: Syntheses, Characterization, and Catalytic Hydrogenation Activity
Faust, Kirill,Topf, Christoph,Vielhaber, Thomas
, p. 4535 - 4543 (2020/12/23)
We report on the preparation of a series of phosphorus-nitrogen donor ligand complexes [M(CO)4(PN)], where M = Cr, Mo, W and PN is 2-(diphenylphosphino)ethylamine. The organometallic compounds were readily obtained upon reacting the respective metal hexacarbonyls with equimolar amounts of the pertinent ligand in the presence of tetraethylammonium bromide. The PN-ligated metal carbonyls were fully characterized by standard spectroscopic techniques and X-ray crystallography. The ability of the title compounds to function as homogeneous hydrogenation catalysts was probed in the reduction of acetophenone and benzaldehyde derivatives to yield the corresponding alcohols. The reaction setup was easily assembled by simply combining the components in the autoclave on the bench outside an inert-gas-operated glovebox system.
RETRACTED ARTICLE: The Manganese(I)-Catalyzed Asymmetric Transfer Hydrogenation of Ketones: Disclosing the Macrocylic Privilege
Passera, Alessandro,Mezzetti, Antonio
supporting information, p. 187 - 191 (2019/12/11)
The bis(carbonyl) manganese(I) complex [Mn(CO)2(1)]Br (2) with a chiral (NH)2P2 macrocyclic ligand (1) catalyzes the asymmetric transfer hydrogenation of polar double bonds with 2-propanol as the hydrogen source. Ketones (43 substrates) are reduced to alcohols in high yields (up to >99 %) and with excellent enantioselectivities (90–99 % ee). A stereochemical model based on attractive CH–π interactions is proposed.
Practical and selective hydroboration of aldehydes and ketones in air catalysed by an iron(ii) coordination polymer
Zhang, Guoqi,Cheng, Jessica,Davis, Kezia,Bonifacio, Mary Grace,Zajaczkowski, Cynthia
, p. 1114 - 1121 (2019/03/12)
The in air catalytic hydroboration of ketones and aldehydes with pinacolborane by an iron(ii) coordination polymer (CP) is carried out under mild and solvent-free conditions. The precatalyst is highly active towards a wide range of substrates including functionalized ketones and aldehydes in the presence of KOtBu as an activator, achieving a high turnover number (TON) of up to 9500. Excellent chemoselectivity to aldehydes over ketones was also revealed, which is in sharp contrast with the results obtained under inert atmosphere using the same catalyst system. This catalyst observed here is not only highly efficient but also recyclable for reuse for at least 5 times without losing its effectiveness.