528522-58-9Relevant articles and documents
NCN-pincer metal complexes (Ti, Cr, V, Zr, Hf, and Nb) of the phebox ligand (S,S)-2,6-bis(4′-isopropyl-2′-oxazolinyl)phenyl
Chuchuryukin, Alexey V.,Huang, Rubin,Lutz, Martin,Chadwick, John C.,Spek, Anthony L.,Van Koten, Gerard
, p. 2819 - 2830 (2011)
Reaction of (S,S)-2,6-bis(4′-isopropyl-2′-oxazolinyl) phenyllithium (i-Pr-Phebox-Li) (2a) with 4,4′-bis[P-(chlorogold(I)) diphenylphosphino]biphenyl [(dppbp)(AuCl)2] (5) afforded the new, bimetallic gold complex 4,4′-bis[P-(η1-C-i-Pr
A new, easily recyclable arylating agent based on a diphosphino-digold(I) complex
Stol, Marianne,Snelders, Dennis J. M.,Kooijman, Huub,Spek, Anthony L.,Van Klink, Gerard P. M.,Van Koten, Gerard
, p. 2589 - 2593 (2008/02/04)
The synthesis of two organogold(i) complexes, [(Au(NCN)) 2(dppbp)] (6) and [(Au(Phebox))2(dppbp)] (9), and their application in subsequent transmetalating reactions are described. A trinuclear organogold(i) complex, [(AuCl)3(tdpppb)] (4) is also reported, which exhibits a surprisingly high solubility in dichloromethane. It was found that 6 and 9 can cleanly transfer the anionic NCN-([C6H3(CH 2NMe2)2-2,6]-) or Phebox-([2,6-bis(oxazolinyl)phenyl]-) moiety to TiIV and PdII centers, respectively. The coproduct [(AuCl)2(dppbp)] (3, dppbp is [4-Ph2PC6H4]2 (1)) formed during this transmetalation reaction, precipitates almost quantitatively from the reaction mixture (toluene) and can thus be separated by simple filtration. In comparison, [AuCl(PPh3)], formed as the coproduct in the transmetalation reaction of [Au(NCN)(PPh3)] with metal salts, has a higher solubility in apolar solvents and thus is more difficult to separate from the resultant organometallic complex. Digold complex 6 has been characterized by NMR spectroscopy and crystallographic analyses. These analyses show that the two gold units are essentially independent. The formation of a dimetallic transmetalating agent based on gold(i) had no effect on its transmetalating properties. The Royal Society of Chemistry 2007.
