It is well-recognized that N-heterocyclic carbene (NHC) ligands have provided a new
dimension to the design of homogeneous catalysts. Part of the success of this type of ligands …

Hydrogenation is one of the most fundamental transformations in organic synthesis, and its
industrial applications span from fine chemicals to pharmaceuticals synthesis. 1− 3 Direct …

A series of new iridium (III) complexes containing bidentate N‐heterocyclic carbenes (NHC)
functionalized with an alcohol or ether group (NHC OR, R= H, Me) were prepared. The …

Since the discovery of persistent carbenes by the isolation of 1, 3-di-l-adamantylimidazol-2-
ylidene by Arduengo and coworkers, we witnessed a fast growth in the design and …

Ruthenium (II) p-cymene complexes with picolyl-functionalized N-heterocyclic carbenes [(η6-
p-cymene) Ru (L)(Cl)][PF6](L= 3-methyl-1-(2-picolyl) imidazol-2-ylidene (1a), 3-isopropyl-1 …

We report a nickel (0)-catalyzed direct transfer hydrogenation (TH) of a variety of alkyl–aryl,
diaryl, and aliphatic ketones with ethanol. This protocol implies a reaction in which a primary …

A series of ruthenium (II) p-cymene complexes containing Schiff-base ligands [Ru (p-
cymene) LCl][HL= pyridyl-salicylimine (2a–2d); HL= thiazol-salicylimine (2e–2h); HL …

Simple air and moisture stable ruthenium complexes 1–3 and 3a were synthesized from
readily available benzannulated N-heterocyclic carbene ligands (bimy= benzimidazolin-2 …

A neutral azole precursor to a protic N-heterocyclic carbene (p NHC) ligand, 6-((4, 5-
diphenyl-1 H-imidazol-1-yl) methyl)-2, 2′-bipyridine (3), was prepared from 6 …

In an effort to develop efficient Ru (II)–NHC-based catalyst considering their stereoelectronic
effect for hydride-transfer reaction, we found that the ancillary NHC ligand can play a …