The Properties Of Catalytic Oxidation Of Polymer-Bound Amino Acid Schiff Base Complexes

The polymer-bound Schiff base complexes have been prepared. They were characterized by infrared spectra, ICP-AES, XPS and TG-DTA. The catalytic activity of the complexes has been investigated in aerobic epoxidation of long-chain aliphatic olefins and effective oxidation of cyclohexene by molecular oxygen . It shows that these complexes were stable and the catalytic activity of these complexes remained until the fourth circle.1. Studies on synthesis and catalyst oxidation proterties of the polymer-bound L-Cysteine Schiff base complexes. In this part, the complexes of PS-Sal-Cys-Co. PS-Sal-Cys-Mn> PS-Sal-Cys-Ni and PS-Sal-Cys-Cu were prepared and they were characterized by FT-IR> XPS. ICP-AES and TG-DTA. The catalyst oxidation properties of cyclohexene with molecular oxygen were studied. The main products of the reaction for cyclohexene were 2-cyclohexen-l-ol and 2-cyclohexen-l-one.2. Studies on synthesis and catalyst oxidation proterties of the polymer-bound L-Lysine Schiff base complexes. In this part, the complexes of PS-Sal-Lys-Co> PS-Sal-Lys-Mn. PS-Sal-Lys-Ni and PS-Sal-Lys-Cu were prepared and they were characterized by FT-IR. XPS. ICP-AES and TG-DTA. The catalyst oxidation properties of cyclohexene with molecular oxygen were studied. The main products of the reaction for cyclohexene were 2-cyclohexen-l-ol and 2-cyclohexen-l-one.3. Studies on synthesis and catalyst oxidation proterties of the polymer-bound L-Lysine Schiff base salicylaldehyde ternary complexes. In this part, the complexes of PS-Sal-Lys-Sal-Co> PS-Sal-Lys-Sal-Mn. PS-Sal-Lys-Sal-Ni and PS-Sal-Lys-Sal-Cu were prepared and they were characterized by FT-IR. XPS. ICP-AES and TG-DTA. The catalyst oxidation properties of cyclohexene with molecular oxygen were studied. The main product of the reaction for cyclohexene was 2-cyclohexen-l-one.4. Studies on synthesis and catalyst oxidation proterties of the polymer-bound L-Lysine Schiff base glyoxal ternary complexes. In this part, the complexes of PS-Sal-Lys-Gly-Co. PS-Sal-Lys-Gly-Mn. PS-Sal-Lys-Gly-Ni and PS-Sal-Lys-Gly-Cu were prepared and they were characterized by FT-IR. XPS. ICP-AES and TG-DTA.The catalyst oxidation properties of cyclohexene with molecular oxygen were studied. The main product of the reaction for cyclohexene was 2-cyclohexen-l-one.5. Studies on synthesis and catalyst oxidation proterties of comb graft Schiff base complexes. In this part, the complexes of PS-Co, PS-Mn, PS-Ni and PS-Cu were prepared and they were characterized by FT-IR, XPS, ICP-AES and TG-DTA. The catalyst oxidation properties of cyclohexene with molecular oxygen were studied. The main product of the reaction for cyclohexene was 2-cyclohexen-l-one.6. In this part, the complexes of PS-Sal-Cys-Co,PS-Sal-Cys-Mn PS-Sal-Lys-Co, PS-Sal-Lys-Sal-Co were used to the oxidation of styrene, the major products were benzaldehyde and epoxy styigne. The complexes of PS-Sal-Cys-Co> PS-Sal-Cys-Mn> PS-Sal-Cys-Ni PS-Sal-Cys-Cu were used to the epoxidation of 1-decene which afford the 1,2-epoxy decane. The complexes of PS-Sal-Phe-DP-Co PS-Sal-Phe-8Q-Co PS-Sal-Phc-DP-Mn PS-Sal-Phe-8Q-Mn PS-Sal-Phe-Phen-Mn were used to the epoxidation of 1-Dodecene which afford the 1,2-epoxy Dodecane.In summary, the advantage of polymer-bound Schiff base complexes is that they are easily prepared and does not require reductants in oxidation of cyclohexene and long-chain linear aliphatic olefins by molecular oxygen. They are environmentally more attractive than oxidation based on stoichiometric amounts of H2O2, NaIO4, Rh(OAc)4, RuO4, NaClO or KMnO4.