Kaloglu, MuratKaloglu, NazanOzdemir, Ismail2024-08-042024-08-0420182365-6549https://doi.org/10.1002/slct.201801045https://hdl.handle.net/11616/98306Herein we report synthesis of seven new palladium(II)-NHC complexes with the general formula [PdX2(NHC)(2)], (NHC=1,3-dialkylbenzimidazol-2-ylidene, X = Cl or Br). The structures of all the new compounds were characterized by (HNMR)-H-1, (CNMR)-C-13, FT-IR spectroscopy and elemental analysis techniques. The catalytic activities of palladium(II)-NHC complexes were tested in the direct C-H bond arylation of C2-blocked pyrrole with various aryl halides in presence of 1mol% catalyst loading at 120 degrees C for 1-16 h. Under the given conditions, palladium(II)-NHC complexes showed the good catalytic performance for the direct C-H bond arylation of C2-blocked pyrrole with aryl bromides, and with readily available and inexpensive aryl chlorides. In all cases, the C-H bond arylation regioselectively produced C5-arylated products in moderate to high yields.eninfo:eu-repo/semantics/closedAccessBenzimidazolium saltDirect C-H bond arylationN-Heterocyclic carbenePalladiumPyrroleArticle3205600560710.1002/slct.2018010452-s2.0-85047662948Q2WOS:000433494600016Q3