Erciyes University 1 article published in JoVE Chemistry Palladium N-Heterocyclic Carbene Complexes: Synthesis from Benzimidazolium Salts and Catalytic Activity in Carbon-carbon Bond-forming Reactions Ziya Sahin1, Senem Akkoς1,2, İlhan Özer İlhan2, Veysel Kayser1 1Faculty of Pharmacy, The University of Sydney, 2Department of Chemistry, Faculty of Sciences, Erciyes University Detailed and generalized protocols are presented for the synthesis and subsequent purification of four palladium N-heterocyclic carbene complexes from benzimidazolium salts. The complexes were tested for catalytic activity in arylation and Suzuki-Miyaura reactions. For each reaction investigated, at least one of the four complexes successfully catalyzed the reaction.