%0 Journal Article
%T Ferrocene Compounds. VII. The Stobbe Condensation of Formylferrocene with Diethyl Glutarate
%A La£żan
%A M.
%A Rapi£ż
%A V.
%J -
%D 1978
%X Sa£żetak The Stobbe condensation of formylferrocene with diethyl glutarate in the presence of potassium tert-butoxide gave (E)-1-ethyl hydrogen 2-ferrocenylmethyleneglutarate (I), which was converted by the action of diazomethane to (E)-1-ethyl 5-methyl 2-ferrocenylmethyleneglutarate (II). The configurations of compounds I and II are assigned through study of their 1H-NMR and IR spectra. This stereochemical assignment is supported by the conversion df compound I to cyclopentadienyl(5,6-dihydro-4-oxo-7-ethoxycarbonylazulenyl) iron (III), which was hydrolized to the corresponding acid (VI). The same acid VI was obtained from half ester I via the corresponding diacid IV and anhydride V. The stereoselectivity of the Stobbe condensation is discussed
%U https://hrcak.srce.hr/index.php?show=clanak&id_clanak_jezik=288881