Synthesis and structure of the new binuclear complex eta/sup 5/-C/sub 5/H/sub 5/(CO)/sub 2/Fe-eta/sup 1/-C/sub 5/H/sub 4/(CO)/sub 2/Fe-CH/sub 3/

Journal Article · Wed Aug 20 04:00:00 EDT 1986 · Bull. Acad. Sci. USSR, Div. Chem. Sci. (Engl. Transl.); (United States)

DOI:https://doi.org/10.1007/BF00952936· OSTI ID:6416836

Orlova, T Yu; Setkina, V N; Andrianov, V G; Struchkov, Yu T

The authors have found that the dimeric complex (eta/sup 5/-C/sub 5/H/sub 5/(CO)/sub 2/Fe)/sub 2/ is also metallated in the cyclopentadiene ring under these conditions, although the yield of the product from the decomposition of the lithium derivative with heavy water (the monodeuterated derivative) does not exceed 20%. During an attempt to use the metallation of (eta/sup 5/-C/sub 5/H/sub 5/(CO)/sub 2/Fe)/sub 2/ to produce the methyl-substituted complex eta/sup 5/CH/sub 3/C/sub 5/H/sub 4/-eta/sup 5/-C/sub 5/H/sub 5/(CO)/sub 4/Fe/sub 2/ the binuclear complex eta/sup 5/-C/sub 5/H/sub 5/(CO)/sub 2/Fe-eta/sup 1/-C/sub 5/H/sub 4/(CO)/sub 2/Fe-CH/sub 3/ (I) was obtained instead of the expected product. It can be supposed that the butyllithium used as metallating agent is capable of reducing the dimer with the formation of the (eta/sup 5/-C/sub 5/H/sub 5/(CO)/sub 2/Fe)/sup -/ anion. With the addition of the electrophilic agent methyl iodide this anion gives the sigma-methyl derivative eta/sup 5/-C/sub 4/H/sub 6/(CO)/sub 2/FeCH/sub 3/, which is metallated in the cyclopentadiene ring by an excess of butyllithium. The obtained lithium derivative eta/sup 4/-LiC/sub 5/H/sub 4/(CO)/sub 2/Fe-CH/sub 3/ reacts with eta/sup 5/-C/sub 5/H/sub 5/(CO)/sub 2/FeI, which was also found among the reaction products, giving the binuclear complex (I). In order to check this suggestion the authors realized the metallation of the authentic eta/sup 5/-C/sub 5/H/sub 5/(CO)/sub 2/Fe-CH/sub 3/ with butyllithium in THF at -78/sup 0/C; with the subsequent addition of eta/sup 5/-C/sub 5/H/sub 5/(CO)/sub 2/FeI to the reaction mixture they in fact obtained compound (I).

• Research Organization: A.N. Nesmeyanov Institute of Heteroorganic Compounds, Moscow, USSR
• OSTI ID: 6416836
• Journal Information: Bull. Acad. Sci. USSR, Div. Chem. Sci. (Engl. Transl.); (United States), Journal Name: Bull. Acad. Sci. USSR, Div. Chem. Sci. (Engl. Transl.); (United States) Vol. 35:2; ISSN BACCA
• Country of Publication: United States
• Language: Russian

Related Subjects

36 MATERIALS SCIENCE
360602 -- Other Materials-- Structure & Phase Studies
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ALKENES
BOND ANGLE
BOND LENGTHS
CARBONYLS
CATALYTIC EFFECTS
COHERENT SCATTERING
COMPLEXES
COMPLEXOMETRY
CRYSTAL LATTICES
CRYSTAL STRUCTURE
CYCLOALKENES
CYCLOPENTADIENE
DEUTERIUM COMPOUNDS
DIENES
DIFFRACTION
DIMENSIONS
DIMERS
ELECTRON SPIN RESONANCE
ELECTRONIC STRUCTURE
FURANS
HETEROCYCLIC COMPOUNDS
HYDROCARBONS
HYDROGEN COMPOUNDS
INFRARED SPECTRA
IRON COMPLEXES
LENGTH
LIGANDS
LITHIUM COMPLEXES
MAGNETIC RESONANCE
MASS SPECTRA
MONOCLINIC LATTICES
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
POLYENES
RESONANCE
SCATTERING
SPECTRA
STRUCTURAL CHEMICAL ANALYSIS
SYNTHESIS
TETRAHYDROFURAN
TRANSITION ELEMENT COMPLEXES
X-RAY DIFFRACTION