| 18217127 |
Yen SK, Koh LL, Huynh HV, Hor TS: Pd (II) complexes with mixed benzothiazolin-2-ylidene and phosphine ligands and their catalytic activities toward C-C coupling reactions. Dalton Trans. 2008 Feb 7;(5):699-706. Epub 2007 Nov 29.
Novel Pd (II) mixed N,S-heterocyclic carbene (NSHC)-phosphine complexes of the general formula [PdBr (2)(NSHC)(PR (3))] were obtained from bridge cleavage of dinuclear NSHC complexes of type [PdBr (2)(NSHC)](2) [NSHC = 3-benzylbenzothiazolin-2-ylidene and 3-propylbenzothiazolin-2-ylidene] with triphenylphosphine, tricyclohexylphosphine and 2-diphenylphosphanyl-pyridine. All complexes have been fully characterized by (1) H and (13) C NMR spectroscopy, ESI mass spectrometry and elemental analysis. The X-ray crystal structures of complexes 3-8 are reported. The complexes exhibit moderate to good catalytic activity in the Suzuki-Miyaura coupling reaction of aryl bromides and chlorides. |
81(1,1,1,1) |