954149-73-6Relevant articles and documents
Contribution of heterobifunctional ligands to transition metal-catalysed C-C coupling reactions
Labande, Agnès,Deydier, Eric,Manoury, Eric,Daran, Jean-Claude,Audin, Catherine,Poli, Rinaldo
, p. 1158 - 1170 (2016/03/01)
In this account the authors' latest results in C-C coupling catalysis are reviewed. First, an efficient catalytic system for the Kumada-Tamao-Corriu coupling reaction based on NHC-phosphine (NHC = N-heterocyclic carbene) nickel complexes is presented. Then the use of palladium complexes of chiral ferrocenyl NHC-phosphines in the asymmetric Suzuki-Miyaura coupling reaction is reported. High catalytic activities and moderate enantioselectivities (ee up to 46%) were obtained. Chiral ferrocenyl phosphine-ethers were also tested in the asymmetric Suzuki-Miyaura reaction yielding good activities and moderate enantioselectivities (ee up to 37%). Finally, the original synthesis of a ferrocenyl rhodium(III) complex and its successful use as catalyst for a C-C coupling reaction via C-H activation of 2-phenylpyridine is presented.
New (1-phosphanylferrocen-1′- and -2-yl)methyl-linked diaminocarbene ligands: Synthesis and rhodium(I) complexes
Labande, Agnes,Daran, Jean-Claude,Manoury, Eric,Poli, Rinaldo
, p. 1205 - 1209 (2008/02/06)
Two ferrocenylmethanols, [1′-(diphenylthiophosphanyl)-ferrocen-1-yl] methanol (3) and [2-(diphenylthiophosphanyl)-ferrocen-1-yl]methanol (6), have been converted in one step into the 1,1′- and 1,2-ferrocenediyl-linked thiophosphane/N-R-imidazolium salts 4a,b and 7a,b (a: R = Me; b: R = 2,4,6-Me3C6H2 or Mes). This straightforward method allows the linkage of an imidazolium group to a ferrocene unit with a nonsubstituted methylene bridge. After desulfurisation of the phosphane group, the ligands reacted with an RhI precursor, in the presence of tBuOK, to give cationic complexes 9a,b and 10a,b. All compounds were characterised by elemental analysis, NMR spectroscopy and mass spectrometry. The molecular structures of compounds 4a, 7a and 9a were determined by X-ray crystallography. Wiley-VCH Verlag GmbH & Co. KGaA, 2007.
