Three cis-chelating di-N-heterocyclic carbene palladium(II) complexes [Pd(X)2(di- NHC)] (X= tsac, sac and bit) tsac= thiosaccharinate, sac= saccharinate, bit= benzisothiazolinate, bearing different anionic co-ligand was synthesized characterized. A series of (2-5) homo-dicarbene ligand with varying propylene-bridged (C3) N-heterocyclic backbones (imidazole) have been by reaction [Pd(OAc)2] the ...

We report the first enantioselective addition of pyrazoles to 1,3-dienes. Secondary and tertiary allylic can be generated with excellent regioselectivity. Mechanistic studies support a pathway distinct from previous hydroaminations: Pd0-catalyzed ligand-to-ligand hydrogen transfer (LLHT). This hydroamination tolerates range functional groups advances field diene hydrofunctionalization.

The factors determining the catalytic performance of a recently discovered system for direct intermolecular alkyne hydroarylations, comprising gold(I) complex general formula LAuX (L = neutral ligand; X weakly coordinating counteranion) and an ionic liquid as solvent, have been investigated. In particular, effect anion, cation, electronic steric properties ligand L considered. results investiga...

The synthesis of a new tridentate Schiff-base thiosemicarbazone ligand (HL) that derived from the reaction ((R)-2-((4-(dimethylamino)phenyl)((2-nitrophenyl)amino)methyl)-5,5-di methyl- cyclohexane-1,3-dione with thiosemicarbazide is reported. title ligand(E)-2-((R)-2-((R)-(4-(dimethylamino)phenyl)((2-nitrophenyl)amino)methyl)-5,5-dimethyl-3-oxocyclohexylidene)hydrazine-1-carbothioamide selected...