Synthesis and properties of some formylferrocene thiosemicarbazones

Abstract

Twelve new substituted thiosemicarbazones have been prepared from formylferrocene and 2-and 4-monosubstituted and 4,4-disubstituted thiosenlicarbazides. The infrared spectra of these conlpounds are discussed in some detail. Copper complexes of three of them were synthesized and their structures established. They were found to be strongly paramagnetic. The electronic absorption spectra of the thiosemicarbazones and the copper complexes are reported.

Interaction of organolead(IV) derivatives with formyl- and acetylferrocene thiosemicarbazones: Coordination versus dephenylation or reductive elimination processes

“…Me 2 Pb(OAc) 2 was prepared as described in the literature [7], and Ph 2 Pb(OAc) 2 and [Ph 3 Pb(OAc)] by stirring di-or triphenyllead(IV) chloride with silver acetate in methanol for 5 h; all three were characterized by elemental analysis and 1 H and 13 C NMR spectroscopy. The acetylferrocene ligands were obtained by the method of Jayasree and Aravindakshan [8], and the formylferrocene ligands by the method of Wiles and Suprunchuk [9]. Some physical and spectroscopic properties of these compounds have been published elsewhere [5,10].…”

Complexes of dichloro[2-(dimethylaminomethyl)phenyl-C1,N]gold(III), [Au(damp-C1,N)Cl2], with formylferrocene thiosemicarbazones: synthesis, structure and cytotoxicity

“…Solvents were of reagent grade and THF was purified by the usual method [11]. [Au(damp-C 1 ; N )Cl 2 ] was prepared according to the literature [12] and was characterized by elemental analysis and 1 H and 13 …”

“…The ligands were prepared following a published procedure [13]. In brief, a solution (HFTSC, HFETSC, Scheme 1.…”

Resonance Raman effect of ferrocene and formylferrocene thiosemicarbazone

“…TFF was synthesized using the following procedure. 26 Twenty five milliliters of an ethanol solution of formylferrocene (265 mg, 1.25 mmol) was added dropwise to 30 ml of an aqueous solution of thiosemicarbazide (114 mg, 1.25 mmol). 0.5 ml of acetic acid was added to this solution, which was then heated at 70°C for 20 min.…”