Synthesis of NHC complexes containing nitrile substituent and their catalytic applications

This thesis is related to the synthesis and catalytic activity of NHC complexes with nitrile function. Nitrile-functionalized NHCs are termed potential multi-pass ligands that can lead to carbene complexes with increased stability through ligand chelation. Their reactivity to metals is particularly interesting and especially important in chelation mode. Recently functionalized NHC chemistry currently has great interest and activity due to multilateral potential applications of derived complexes. The thesis consists of three parts. The initial part consists of the properties of NHC compounds, synthesis methods, and transfer hydrogenation and Suzuki cross-coupling reactions are included in the literature. The second part includes experimental studies. The third part deals with the synthesis, characterization and catalytic studies of the synthesized CN group-containing salts and complexes.Based on the synthesis of ligands having nitrile group, complexes were synthesized as a result of reaction with metal salts of Ru, Ir and Pd. The synthesis steps are summarized in Scheme 1.The synthesized Ru and Ir complexes were analyzed for their catalytic activity in the tranfer hydrogenation reaction and the catalytic activity of synthesized Pd complexes in Suzuki-Miyaura cross-coupling reactions was investigated. Keywords: N-Heterocyclic carbene, C-C coupling reaction, nitrogen, sulfur donor ligand