Palladium N-Heterocyclic Carbene Pre-catalysts Bearing Different Ancillary Ligands for the Buchwald–Hartwig Amination of Cyclic Secondary Amines with Aryl Chlorides
作者:Murat Kaloğlu、İsmail Özdemir
DOI:10.1007/s10562-023-04432-w
日期:2024.4
a one-step process. These complexes were used as pre-catalysts in the Buchwald–Hartwigamination of cyclic secondary amines with arylchlorides. A range of cyclic secondary amines were tolerated to a wide variety of arylchlorides in presence of 1 mol% catalyst loading under mild conditions. Under the tested reaction conditions, the expected N-arylamines were obtained in moderate to high yields. The
Palladium-PEPPSI-NHC Complexes Bearing Imidazolidin-2-Ylidene Ligand: Efficient Precatalysts for the Direct C5-Arylation of N-Methylpyrrole-2-Carboxaldehyde
作者:Murat Kaloğlu、Nazan Kaloğlu、İsmail Özdemir
DOI:10.1007/s10562-021-03561-4
日期:2021.11
The Pd-catalyzed direct arylation of pyrroles is an important research field for organic synthesis and catalysis chemistry. However, imidazolidin-2-ylidene based Pd-NHC complexes (NHC=N-heterocycliccarbene) have not yet been employed as catalysts for the direct C5 mono-arylation of C2-substituted N-methylpyrrole derivatives with aryl halides. Therefore, we now report the synthesis and characterization