Perimidin-2-ylidene rhodium(I) complexes; unexpected halogen exchange and catalytic activities in transfer hydrogenation reaction
作者:P. Arzu Akıncı、Süleyman Gülcemal、Olga N. Kazheva、Grigorii G. Alexandrov、Oleg A. Dyachenko、Engin Çetinkaya、Bekir Çetinkaya
DOI:10.1016/j.jorganchem.2014.04.033
日期:2014.8
(NHC = perimidin-2-ylidene; COD = 1,5-cyclooctadiene) rhodiumcomplexes (4a–c and 5a) have been prepared by the reaction of [Rh(μ-OMe)(COD)]2 with perimidinium bromides (2a–c and 3a). The halogen exchange, abstracted from 1,2-dichloroethane was observed during the reaction and [(NHC)RhCl(COD)] complexes were obtained instead of [(NHC)RhBr(COD)]. All ligand precursors and complexes have been fully characterized by 1H