저자(한글) |
Kariofillis, S.K.,Cesanek, L.A.,Kassel, W.S.,Piro, N.A.,Swails, R.J.L. |
초록 |
A cationic palladium(II) complex, [1,3-bis(N-methylpyridinium-2-ylmethyl)imidazolin-2-ylidene] palladium(II) triiodide (3), was synthesized from the imidazolium salt 1,3-bis(N-methylpyridinium-2-ylmethyl)imidazolium triiodide (2) and characterized by 1 H and 13 C{ 1 H} NMR spectroscopy, elemental analysis, and X-ray crystallography. X-ray crystallography revealed that the pyridinium substituted N-heterocyclic carbene ligand exhibits very low steric bulk based on calculated %V bur values. Catalytic application of 3 was tested via the Suzuki-Miyaura cross-coupling of aryl halides with phenylboronic acid in aqueous solutions. Catalytic results suggest 3 catalyzes boronic acid homocoupling while palladium nanoparticles are likely responsible for the observed cross-coupling. |