Papers - OOI Takashi
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Complete Switch of Migratory Aptitude in Aluminum-Catalyzed 1,2-Rearrangement of Differently α,α-Disubstituted α-Siloxy Aldehydes Reviewed
Ohmatsu, Kohsuke; Tanaka, Takayuki; Ooi, Takashi; Maruoka, Keiji
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION Vol. 47 ( 28 ) page: 5203-5206 2008.6
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Synthesis of Chiral Tetraaminophosphonium Chlorides from N-BOC α-Amino Acid Esters Invited Reviewed
Uraguchi, Daisuke; Sakaki, Sawako; Ueki, Yusuke; Ito, Takaki; Ooi, Takashi
Heterocycles Vol. 76 page: 1081-1085 2008
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*Chiral Tetraaminophosphonium Carboxylate-Catalyzed Direct Mannich-Type Reaction Reviewed
Uraguchi, Daisuke; Ueki, Yusuke; Ooi, Takashi
J. Am. Chem. Soc. Vol. 130 page: 14088–14089 2008
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光学活性な炭素の三角形を作る―Corey-Chaykovsky反応と親電子剤活性化法の組み合わせ Invited
浦口大輔、大井貴史
化学 Vol. 63 page: 66-67 2008
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Recent advances in asymmetric phase-transfer catalysis Reviewed
Ooi, Takashi; Maruoka, Keiji
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION Vol. 46 ( 23 ) page: 4222-4266 2007
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Development and Applications of C2-Symmetric, Chiral, Phase-Transfer Catalysts Invited Reviewed
Ooi, Takashi; Maruoka, Keiji
Aldrichimia Acta Vol. 40 page: 77-86 2007
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*Chiral Tetraaminophosphonium Salt-Mediated Asymmetric Direct Henry Reaction Reviewed
Uraguchi, Daisuke; Sakaki, Sawako; Ooi, Takashi
J. Am. Chem. Soc. Vol. 129 page: 12392-12393 2007
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Design of chiral organocatalysts for practical asymmetric synthesis of amino acid derivatives Invited Reviewed
Maruoka, Keiji; Ooi, Takashi; Kano, Taichi
CHEMICAL COMMUNICATIONS ( 15 ) page: 1487-1495 2007
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Catalytic Asymmetric Rearrangement of α,α-Disubstituted α-Siloxy Aldehydes to Optically Active Acyloins Using Axially Chiral Organoaluminum Lewis Acids Reviewed
Ooi, Takashi; Ohmatsu, Kohsuke; Maruoka, Keiji
J. Am. Chem. Soc. Vol. 129 page: 2410-2411 2007
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Advantage of in situ generation of N-arylsulfonyl imines from α-amide sulfones in the phase-transfer-catalyzed asymmetric Strecker reaction Reviewed
Ooi, Takashi; Uematsu, Yukitaka; Fujimoto, Jun; Fukumoto, Kazuhiro; Maruoka, Keiji
Tetrahedron Lett. Vol. 48 page: 1337-1340 2007
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Practical Stereoselective Synthesis of -Branched -Amino Acids through Efficient Kinetic Resolution in the Phase-Transfer-Catalyzed Asymmetric Alkylations Reviewed
Ooi, Takashi; Kato, Daisuke; Inamura, Koji; Ohmatsu, Kohsuke; Maruoka, Keiji
Org. Lett. Vol. 9 ( 20 ) page: 3945-3948 2007
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Highly diastereo- and enantioselective formal conjugate addition of nitroalkanes to nitroalkenes by chiral ammonium bifluoride catalysis. Reviewed
Ooi, Takashi; Takada, Saki; Doda, Kanae; Maruoka, Keiji
Angew. Chem., Int. Ed. Vol. 45 page: 7606-7608 2006
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Asymmetric phase-transfer catalysis of homo- and heterochiral quaternary ammonium salts: development and application of conformationally flexible chiral phase-transfer catalysts. Reviewed
Ooi, Takashi; Uematsu, Yukitaka; Kameda, Minoru; Maruoka, Keiji
Tetrahedron Vol. 62 page: 11425-11436 2006
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Asymmetric synthesis of α-acyl-γ-butyrolactones possessing all-carbon quaternary stereocenters by phase-transfer-catalyzed alkylation. Reviewed
Ooi, Takashi; Miki, Takashi; Fukumoto, Kazuhiro; Maruoka, Keiji
Adv. Synth. Catal. Vol. 348 page: 1539-1542 2006
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Construction of Enantiomerically Enriched Tertiary α-Hydroxycarboxylic Acid Derivatives by Phase-Transfer-Catalyzed Asymmetric Alkylation of Diaryloxazolidin-2,4-diones Reviewed
Takashi, Ooi; Kazuhiro, Fukumoto; Keiji, Maruoka
Angew. Chem., Int. Ed. Vol. 45 page: 3839-3842 2006
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Highly enantioselective monoalkylation of p-chlorobenzaldehyde imine of glycine tert-butyl ester under mild phase-transfer conditions.
Ooi, Takashi; Arimura, Yuichiro; Hiraiwa, Yukihiro; Yuan, Lin Ming; Kano, Taichi; Inoue, Toru; Matsumoto, Jun; Maruoka, Keiji
Tetrahedron: Asym. Vol. 17 page: 603-606 2006
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Asymmetric Strecker Reaction of Aldimines Using Aqueous Potassium Cyanide by Phase-Transfer Catalysis of Chiral Quaternary Ammonium Salts with a Tetranaphthyl Backbone. Reviewed
Ooi, Takashi; Uematsu, Yukitaka; Maruoka, Keiji
J. Am. Chem. Soc. Vol. 128 page: 2548-2549 2006
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Highly Enantioselective Phase-Transfer-Catalyzed Alkylation of Protected α-Amino Acid Amides toward Practical Asymmetric Synthesis of Vicinal Diamines, α-Amino Ketones, and α-Amino Alcohols. Reviewed
Ooi, Takashi; Takeuchi, Mifune; Kato, Daisuke; Uematsu, Yukitaka; Tayama, Eiji; Sakai, Daiki; Maruoka, Keiji
J. Am. Chem. Soc. Vol. 127 page: 5073-5083 2005
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Asymmetric Michael Addition of Silyl Nitronates to Cyclic α,β-Unsaturated Ketones Catalyzed by Chiral Quaternary Ammonium Bifluorides: Isolation and Selective Functionalization of Enol Silyl Ethers of Optically Active γ-Nitro Ketones. Reviewed
Ooi, Takashi; Doda, Kanae; Takada, Saki; Maruoka, Keiji
Tetrahedron Lett. Vol. 47 page: 145-148 2005
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N-Spiro Chiral Quaternary Ammonium Bromide Catalyzed Diastereo- and Enantioselective Conjugate Addition of Nitroalkanes to Cyclic α,β-Unsaturated Ketones under Phase-Transfer Conditions. Reviewed
Ooi, Takashi; Takada, Saki; Fujioka, Shingo; Maruoka, Keiji
Org. Lett. Vol. 7 page: 5143-5146 2005