3st International Conference on Physical Chemistry & Functional Materials (PCFM20), Malatya, Türkiye, 22 - 24 Eylül 2020, ss.1
The N-heterocyclic carbenes (NHCs) were known as unstable and non-isolable intermediates when first discovered by Wanzlick  and Öfele  in 1968. However, after the report on the extraordinary stability, isolation, and storability of crystalline NHC IAd by Arduengo et al. in 1991 , numerous studies have been reported on the NHC as ligands in organic and organometallic chemistry . These ligands with strong σ-donor and weak π-acceptor properties can form stable complexes with almost all transition metals .
Our study contains the synthesis of the new series of 2-morpholinoethyl-substituted bis-(NHC)Pd(II) complexes and their structural and spectroscopic characterization. Also, the catalytic activities of the bis-(NHC)Pd(II) complexes have been investigated that they are more efficient and stable catalysts for the direct arylation reactions of 2-n-butylfuran and 2-n-butylthiophene with aryl bromide.