480431-22-9Relevant academic research and scientific papers
Nickel-triflate complexes as precursors to reactive cations: Preparation and reactivities of (1-R-mdenyl)Ni(PPh3)(OSO2CF3)
Wang, Ruiping,Groux, Laurent F.,Zargarian, Davit
, p. 5531 - 5539 (2008/10/08)
The complexes (1-R-indenyl)Ni(PPh3)(OTf) (OTf = OSO2CF3; R = Et (1), i-Pr (2), and Bz (3)) have been prepared by reacting the corresponding Ni-thienyl or Ni-Cl precursors with HOTf (triflic acid) or AgOTf, respectively. The triflate ligand in these complexes undergoes facile displacement by various substrates or ligands to facilitate (a) catalytic dimerization of ethylene, isomerization of 1-hexene, and polymerization of phenylacetylene, or (b) formation of the cationic complexes [(1-R-indenyl)(PPh3)Ni(L)]+ (R = i-Pr (a) and CH3Ph (b); L = CH3CN (4), PhCN (5), CO (6), Py (7), CNC(CH3)3 (8), PPh3 (9), and PMe3 (10)). Compounds 1-10 have been characterized spectroscopically and, in the case of complexes 2, 4a, and 8a, by single-crystal X-ray crystallography.
