Synthesis of perfluoro substitued thiophene ligand based rhodium and palladium complexes and investigating their catalytic activities by hydrogenation on some olefins in supercritical carbondioxide media

In this study, thiophene ligands modified with perfluoroalkylated [(CH2)n(CF2)7CF3 n=1,2] groups (heptadecafluorodecyl-thiophene-2-carbothioate (L1) and heptadecafluorononyl-thiophene-2-carboxylate (L2)) and their four different Rh(I) and Pd(II) complexes which are soluble in the new generation reaction media supercritical carbondioxide has been synthesized. The activity of catalysts has been defined on hydrogenation reactions of olefins have different chemical environment. Styrene, 1-octene and cyclohexene substrats have been chosen and studied temperature dependence of catalytic reaction for hydrogenation. Catalytic reactions also repeated in some conventional organic solvents and showed that as an environmental friendly reaction media scCO2 is an alternative media of them. The experimental results showed that synthesized catalysts especially active on styrene and 1-octene hydrogenation reactions.