Dicyclopentadienyl titanium(IV) amino acid complexes of the type Cp~2Ti(O~2CCH~2-NHC~6H~4R)~2 (R=H, p-Cl, p-OC~2H~5, m-CH~3, m=Cl) have been synthesized in aqueous medium by the reaction of titanocene dicholoride (Cp~2TiCl~2) with sodium or potassium salts of the amino acids RC~6H~4NHCH~2COOH (R=H, p-Cl, p-OC~2H~5, m-CH~3, m-Cl), or in nonaqueous medium by the reaction of Cp~2TiCl~2 with the RC~6H~4NHCH~2COOH in presence of NEt~3. These complexes have been characterized by elemental analyses, IR and ^1H NMR. Having compared the facts from aqueous medium with in nonaquous medium, we have found that in aqueous medium, the reaction is faster, and the product yield is higher.

Key words: AMINO ACID, SYNTHESIS, AQUEOUS PHASE SYSTEM, TITANIUM COMPOUNDS, CHARACTERIZATION, COMPLEX COMPOUNDS, CYCLOPENTADIENYL GROUP