Many chiral ligands bearing phosphorus donor atoms were developed and applied in the area of metal catalyzed asymmetric catalysis. A new chiral bis(phoshinite) ligand was successfully synthesized from optically active (1S,8S)-3,6-[N-(S)-alpha-phenylethyl] diaza-1,8-diphenoxymethyl-1,8-octanediol in high yield. A ruthenium(II) complex generated in situ from [Ru(eta(6)-p-cymene)(mu-Cl)Cl](2), bis(phosphinite) ligand and KOH acts as an active catalyst for asymmetric transfer hydrogenation (ATH) of acetophenone derivatives in isopropyl alcohol (IPA) as both solvent and hydrogen source. The catalytic reaction proceeds cleanly to give enantiomerically enriched secondary alcohols up to 90% or 89% ee's at 50 or 82 degrees C, respectively. (C) 2013 Elsevier B. V. All rights reserved.
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Stockholm Univ, Dept Organ Chem, Arrhenius Lab, SE-10691 Stockholm, SwedenStockholm Univ, Dept Organ Chem, Arrhenius Lab, SE-10691 Stockholm, Sweden
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Kanto Chem Co Inc, Technol & Dev Div, Cent Res Lab, Soka, Saitama 3400003, JapanKanto Chem Co Inc, Technol & Dev Div, Cent Res Lab, Soka, Saitama 3400003, Japan
Utsumi, Noriyuki
Arai, Noriyoshi
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Hokkaido Univ, Fac Engn, Div Appl Chem, Sapporo, Hokkaido 0608628, Japan
Hokkaido Univ, Fac Engn, Frontier Chem Ctr, Sapporo, Hokkaido 0608628, JapanKanto Chem Co Inc, Technol & Dev Div, Cent Res Lab, Soka, Saitama 3400003, Japan
Arai, Noriyoshi
Kawaguchi, Kei
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Hokkaido Univ, Fac Engn, Div Appl Chem, Sapporo, Hokkaido 0608628, Japan
Hokkaido Univ, Fac Engn, Frontier Chem Ctr, Sapporo, Hokkaido 0608628, JapanKanto Chem Co Inc, Technol & Dev Div, Cent Res Lab, Soka, Saitama 3400003, Japan
Kawaguchi, Kei
Katayama, Takeaki
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Kanto Chem Co Inc, Technol & Dev Div, Cent Res Lab, Soka, Saitama 3400003, JapanKanto Chem Co Inc, Technol & Dev Div, Cent Res Lab, Soka, Saitama 3400003, Japan
Katayama, Takeaki
Yasuda, Toshihisa
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Kanto Chem Co Inc, Technol & Dev Div, Cent Res Lab, Soka, Saitama 3400003, JapanKanto Chem Co Inc, Technol & Dev Div, Cent Res Lab, Soka, Saitama 3400003, Japan
Yasuda, Toshihisa
Murata, Kunihiko
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Kanto Chem Co Inc, Technol & Dev Div, Cent Res Lab, Soka, Saitama 3400003, JapanKanto Chem Co Inc, Technol & Dev Div, Cent Res Lab, Soka, Saitama 3400003, Japan
Murata, Kunihiko
Ohkuma, Takeshi
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Hokkaido Univ, Fac Engn, Div Appl Chem, Sapporo, Hokkaido 0608628, Japan
Hokkaido Univ, Fac Engn, Frontier Chem Ctr, Sapporo, Hokkaido 0608628, JapanKanto Chem Co Inc, Technol & Dev Div, Cent Res Lab, Soka, Saitama 3400003, Japan