A comparison between (a/n-NHC)PdX2(pyridine) and (a/n-NHC)2PdX2 (X = I, Cl) type complexes of abnormal fused-bicyclic imidazo[1,2-a]pyridine based N-heterocyclic carbene (a-NHC) and of normal imidazole based N-heterocyclic carbene (n-NHC) ligands in the Suzuki-Miyaura coupling reactions

Accessing Heteroannular Benzoxazole and Benzimidazole Scaffolds via Carbodiimides Using Azide–Isocyanide Cross-Coupling as Catalyzed by Mesoionic Singlet Palladium Carbene Complexes Derived from a Phenothiazine Moiety

“…With our interest in exploring the potentials of the transition metal complexes of the heteroatom stabilized cyclic and acyclic singlet carbene ligands in homogeneous catalysis − and in biomedical applications, we study different singlet-carbene ligand classes covering the cyclic normal N-heterocyclic carbenes, abnormal mesoionic carbenes , the acyclic diaminocarbenes , and the fused-cyclic ones of the imidazole, benzimidazole, triazole, ,, oxazolidine, bioxazoline, and triazolooxazine architectures. The mesoionic (MIC) carbenes, featuring less heteroatom stabilization than the more ubiquitous normal N-heterocyclic carbenes, come with specific donors and reactivity properties but surprisingly remain less explored .…”

Synthesis of Palladium complexes derived from Amido linked N‐Heterocyclic Carbenes and their use in Suzuki cross coupling reactions

“…Internally functionalized amido linked N-heterocyclic carbenes (NHC) is an active area of research [1][2][3][4] The strong ϭ donor property of these carbenes [5] results to air stable compounds with strong metal carbon bonds. [6][7][8][9] Especially, NHC complexes of group 10 metals are highly efficient catalysts for CÀ C coupling reactions such as Suzuki-Miyaura, [2,8,10,11] Sonogashira [12,13] and the Hiyama couplings.…”