Dramatic Rate Acceleration by a Diphenyl-2-pyridylphosphine Ligand in the Hydration of Nitriles Catalyzed by Ru(acac)2 Complexes
Organometallics2005Vol. 24(26), pp. 6287–6290
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Toshiyuki Oshiki, Hitoshi Yamashita, Kensuke Sawada, Masaru Utsunomiya, Kazunari Takahashi, Kazuhiko Takai
Abstract
New ruthenium(II) complexes having acac (=acetylacetonato) and diphenyl-2-pyridylphosphine as ligands proved to be excellent catalysts for hydration of nitriles to amides under neutral conditions. Among the ruthenium complexes examined, cis-Ru(acac)2(PPh2py)2 exhibited the highest activity, with a turnover frequency of up to 20 900 (mol of amide)/((mol of catalyst) h).
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