In this thesis H 2 Sal H Glc sugar Schiff base ligand as well as four of its derivatives including H 2 Sal 5-Br Glc, H 2 Sal (3,5-tBu) Glc, H 2 Sal 3-OMe Glc and H 2 Sal 5-OMe Glc were synthesized. In the ligands, C-1 position of the sugar ring was protected by a benzyloxy group. Their vanadium complexes were also synthezied with use of vanadium alkoxide (V) as precursor. These compounds were characterized by FT-IR and different NMR spectroscopies. Then, the synthesized complexes were used as catalysts in sulfoxidation reactions. Methylphenylsulfide and dibenzothiophene were used as readily and hardly oxidizing substrates, respectively. The data were reported base on Thin Layer Chromatography (TLC) Gas Chromatography (GC). According to the experimental data, [OV(Sal (3,5-tBu) Glc)] complex has the best conversion and selectivity with respect to Sulfoxide.
