Symmetrically bridged bis-N-heterocyclic carbene rhodium (I) complexes and their catalytic application for transfer hydrogenation reaction

Bridged rhodium(I) bis(NHC) complexes of the formula [bis-(NHC)Rh(I)PF6] (1c-5c) were synthesized and applied as catalysts in the transfer hydrogenation of acetophenone in 2-propanol. The activity of the rhodium(I) complexes largely depends on the nature of the N-substituents and the applied bases. The synthesized compounds were characterized by elemental analysis, H-1 and C-13 NMR-spectroscopy and mass spectrometry. The structure of complex 2c was exemplary determined by X-ray analysis. (C) 2011 Elsevier B.V. All rights reserved.     «

Bridged rhodium(I) bis(NHC) complexes of the formula [bis-(NHC)Rh(I)PF6] (1c-5c) were synthesized and applied as catalysts in the transfer hydrogenation of acetophenone in 2-propanol. The activity of the rhodium(I) complexes largely depends on the nature of the N-substituents and the applied bases. The synthesized compounds were characterized by elemental analysis, H-1 and C-13 NMR-spectroscopy and mass spectrometry. The structure of complex 2c was exemplary determined by X-ray analysis. (C) 201...     »

ISI Document Delivery No.: 842AL Times Cited: 6 Cited Reference Count: 50 Jokic, Nadezda B. Zhang-Presse, Mei Goh, Serena L. M. Straubinger, Claudia S. Bechlars, Bettina Herrmann, Wolfgang A. Kuehn, Fritz E. Kuhn, Fritz/A-3113-2010; Herrmann, Wolfgang/A-3588-2010 Bayerische Forschungsstiftung; Universitat Bayern e. V.; The International Graduate School of Science and Engineering (IGSSE); TUM Graduate School Universitat Bayern e. V. is acknowledged for a Ph.D. fellowship for N.B.J., S.L.M.G. thanks the Bayerische Forschungsstiftung for a Ph.D. grant. Manuel Hogerl is acknowledged for his helpful assistance. The International Graduate School of Science and Engineering (IGSSE) and the TUM Graduate School are also acknowledged for their financial support. 6 Elsevier science sa Lausanne     «

ISI Document Delivery No.: 842AL Times Cited: 6 Cited Reference Count: 50 Jokic, Nadezda B. Zhang-Presse, Mei Goh, Serena L. M. Straubinger, Claudia S. Bechlars, Bettina Herrmann, Wolfgang A. Kuehn, Fritz E. Kuhn, Fritz/A-3113-2010; Herrmann, Wolfgang/A-3588-2010 Bayerische Forschungsstiftung; Universitat Bayern e. V.; The International Graduate School of Science and Engineering (IGSSE); TUM Graduate School Universitat Bayern e. V. is acknowledged for a Ph.D. fellowship for N.B.J., S.L.M.G....     »