Synthesis and examination of the properties of coumarinbearing palladium-N-heterocyclic carbene complexes

Today, N-heterocyclic carbene complexes are the most investigated organometallic structures in the research areas of catalysis, organometallic chemistry and bio-organometallic chemistry and catalysis. Strong electron donor properties and tunability of carbon scaffold are the most important advantages of N-heterocyclic carbene ligands. Pd-N-heterocyclic carbenes are the most intensely investigated N-heterocyclic carbenes and have been applied succesfully in dozens of organic reactions. Coumarin and its derivatives have been investigated for many years due to their various biological properties. They have been used commercially in clinical applications due to their anti-coagulant effects. In addition, they have been investigated in various fields due to some of their photophysical properties. Within the scope of this thesis, coumarin-bearing and benzimidazole-based five novel Pd-N-heterocyclic carbene complexes have been synthesized to evaluate their properties. The structures of complexes have been established by X-ray single crystal diffraction, NMR and IR spectroscopic methods and elemental analyses. Catalytic activities of all complexes have been tested in Suzuki reaction of phenylboronic acid and arylbromide derivatives.