ChemInform Abstract: OPTICALLY ACTIVE TRANSITION METAL COMPLEXES. LXXIII. STEREOCHEMISTRY AT THE IRON ATOM IN REARRANGEMENT, EPIMERIZATION, AND LIGAND EXCHANGE REACTIONS OF THE COMPLEXES C5H5FE(CO)(COR)L

1981 ◽  
Vol 12 (37) ◽  
Author(s):  
H. BRUNNER ◽  
H. VOGT
Keyword(s):  
Transition Metal ◽  
Metal Complexes ◽  
Transition Metal Complexes ◽  
Iron Atom ◽  
Ligand Exchange ◽  
Optically Active ◽  
Exchange Reactions ◽  
Active Transition

scholarly journals Optisch aktive Übergangsmetall-Komplexe, LVII [1] (+)- und (-)-C5H5M(CO)(P∅2R*)X mit M = Fe, 57Fe und X = I, COCH3, CH3 / Optically Active Transition Metal Complexes, L VII [1] (+)- and (-)-C5H5M(CO)(P∅2R*)X with M = Fe, 57Fe, and X = I, COCH3, CH3

1978 ◽  
Vol 33 (4) ◽  
pp. 407-411 ◽  
Author(s):  
Henri Brunner ◽  
Manfred Muschiol ◽  
Wilfried Nowak
Keyword(s):  
Transition Metal ◽  
Metal Complexes ◽  
Transition Metal Complexes ◽  
Fractional Crystallization ◽  
Iron Atom ◽  
Nmr Spectra ◽  
Chemical Shifts ◽  
Optically Active ◽  
H Nmr ◽  
Active Transition

In the reaction of C5H5Fe(CO)2l and C5H5Fe(CO)2CH3, respectively, with S-(+)-(C6H5)2PN(CH3)CH(CH3)(C6H5) (abbreviated P∅2R*) the complexes C5H5Fe(CO)(P∅2R*)I (1), C5H5Fe(CO)(P∅2R*)COCH3 (2), and C5H5Fe(CO)(P∅2R*)CH3 (3) are formed as pairs of diastereoisomers the components of which differ only in the configu­ration at the iron atom. CsH5Fe(CO)(P∅2R*)CH3 (3) can be obtained in higher yield by photochemical decarbonylation of C5H5Fe(CO)(P∅2R*)COCH3 (2). The (+)365- and (-)365-diastereoisomers of each pair exhibit different chemical shifts in the 1H NMR spectra. Diastereoisomer separation can be achieved by fractional crystallization.Starting with 57Fe metal (-)365-C5H557Fe(CO)(P∅2R*)I was prepared via 57Fel2, 57Fe(CO)4l2, C5H557Fe(CO)2l, and C5H557Fe(CO)(P∅2R*)I in order to demonstrate optical activity of a 57Fe compound in the y region by Mössbauer polarimetry in later experiments to be reported elsewhere.

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