A Palladium(II) Peroxido Complex Supported by the Smallest Steric N-Heterocyclic Carbene, IMe=1,3-Dimethylimidazole-2-ylidene, and Its Reactivity by Oxygen-Atom Transfer

作者：Lee Eunsung^*; Bae Dae Young; Park Sungho; Oliver Allen G; Kim Yonghwi; Yandulov Dmitry V

来源：European Journal of Inorganic Chemistry, 2016, 2016(28): 4561-4564.

DOI：10.1002/ejic.201601019

• Palladium
• Carbene ligands
• Ligand oxygenation
• Atom transfer
• Oxygen

Stabilized with an N-heterocyclic carbene ligand of the smallest steric profile, Pd-II(eta(2)-O-2)(IMe)(2) (IMe = 1,3-dimethylimidazole-2-ylidene) was synthesized by the direct addition of dioxygen to Pd-0(IMe)(2). The peroxidopalladium complex with IMe, which was previously available only by computation, was characterized by IR spectroscopy and X-ray crystallography. Moreover, its oxygen-atom-transfer reactivity was elucidated by studying its thermolysis in pyridine at 60 degrees C to yield 1,3-dimethylimidazol-2-one (IMeO) and its reaction with oxygen-atom-transfer acceptors such as PPh3 and (Me3Si)(2).

• 出版日期2016-10