912349-15-6Relevant academic research and scientific papers
Organo transition metal cascade reactions for forming higher aggregeted systems: Nickelacyclic carboxylates as precursors for the synthesis of a oxinato-nickel(II)-tetramer
Langer, Jens,Goerls, Helmar,Gillies, Glenn,Walther, Dirk
, p. 2719 - 2726 (2005)
Diisopropyl-8-oxychinolylphosphinite (2) reacts with the nickelacycle [(py)2Ni-CH2CH2-COO] under formation of the thermically stable nickelalactones [(2)Ni-CH2CH2-COO] (4) the solid state structure of which was determined by an X-ray crystallographic analysis. In 4 the ligand acts as a six-membered chelating ligand with P,N coordination. According to the NMR spectrathis structure is present in solution as well. However, the stronger electron-withdrawing diphenyl-8- Oxychinolylphosphinite reacts under similar conditions in further reactions yielding the tetranuclear oxinato-diphenylphosphinato-Ni(II) complex 6 in the presence of oxygen. The structure of 6 was determined by an X-ray analysis. The formation of 6 is the result of a reaction cascade of at least five metal-assisted reactions which occur step by step, and to some extend in parallel reactions.
