Catalytic homogeneous hydrogenation of 7-methoxy-3-phenylchromoneand other substrates was achieved in the presence of cationic iridiumcomplexes and base as co-catalyst. Contrary to common alkenehydrogenation,which is inactivated by base, the hydrogenation of the above setof electron-deficient alkenes turned out to be base-activated.
Übergangsmetallorganische Reaktionskaskaden zum Aufbau höher aggregierter Systeme: Nickelacyclische Carboxylate als Precursoren für die Synthese eines Oxinato-Nickel(II)-Tetramers
Organo Transition Metal Cascade Reactions for Forming Higher Aggregeted Systems: Nickelacyclic Carboxylates as Precursors for the Synthesis of a Oxinato-Nickel(II)-Tetramer 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
Synthesis and characterization of iron and ruthenium complexes bearing P–N ligands based on 8-hydroxyquinoline
作者:David Benito-Garagorri、Wolfgang Lackner-Warton、Christina M. Standfest-Hauser、Kurt Mereiter、Karl Kirchner
DOI:10.1016/j.ica.2010.05.019
日期:2010.11
give selectively octahedral complexes of the type cis , cis -Fe(PN quin )(CO) 2 Br 2 . There is only one isomer formed where the two CO and the two bromide ligands adopt a cis configuration. The reaction of [RuCp(CH 3 CN) 3 ]PF 6 with PN quin ligands affords the halfsandwich complexes [RuCp(PN quin )(CH 3 CN)]PF 6 in high isolated yields. Likewise, treatment of [Ru( η6 - p -cymene)( μ -Cl)Cl] 2 with
complexes of 8-(diphenylphosphanyl-oxy)quinoline (POQ), a combination of a phosphine and a N-heterocycle with CuX (X = Cl, Br, I and SCN). The photophysical properties of the materials were studied. However, all four compounds were found to be labile in solution upon contact with trace amounts of water. Two POQ complexes and the decomposition products were identified as tetraphenyldiphosphoxane complexes