The main subject of this diploma thesis was organometallic chemistry of ferrocene, particularly the synthesis of the chosen monosubstituted ferrocenes. The synthesis was performed in three steps. In the first step, phenylferrocenylketones were synthesized by the Friedel-Crafts acilation. After that, in the second step, the ketones were reduced with LiAlH4 into analogue alcohols. Finally, in the last step, an ester was prepared via nucleophilic substitution between alcohol and acyl-halide. Synthesized compounds were analyzed and identified by the method of nuclear magnetic resonance. Analysis of NMR-spectrums of the previously prepared ferrocene derivatives has shown that different atoms give different chemical shifts. The characteristic chemical shifts of the aromatic hydrogen atoms lay between 4.00 ppm and 5.00 ppm in case of ferrocene, and 7.00 pm and 8.00 ppm in case of benzene. The chemical shift of the α-hydrogen atom changes from approximately 5 ppm to 6.97 ppm because of the nearness of the carbonyl oxygen atom and the bigger effect of dishielding, which in the end leads to the larger chemical shift. The chemical shifts of the aromatic carbon atoms are in the intervals given in the literature: carbon atoms of the ferrocene are between 60 and 80 ppm, and the carbon atoms of the benzene are between 90 and 170 ppm. The chemical shifts of the carbonyl carbon atoms in the ketone (199 ppm) and ester (166 ppm) are also situated in the intervals given in the literature.