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PUBMED FOR HANDHELDS

Journal Abstract Search


217 related items for PubMed ID: 23634801

  • 1. Construction of a chiral quaternary carbon center by catalytic asymmetric alkylation of 2-arylcyclohexanones under phase-transfer conditions.
    Kano T, Hayashi Y, Maruoka K.
    J Am Chem Soc; 2013 May 15; 135(19):7134-7. PubMed ID: 23634801
    [Abstract] [Full Text] [Related]

  • 2. Design of N-spiro C2-symmetric chiral quaternary ammonium bromides as novel chiral phase-transfer catalysts: synthesis and application to practical asymmetric synthesis of alpha-amino acids.
    Ooi T, Kameda M, Maruoka K.
    J Am Chem Soc; 2003 Apr 30; 125(17):5139-51. PubMed ID: 12708866
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  • 3. Highly enantioselective synthesis of α,α-dialkylmalonates by phase-transfer catalytic desymmetrization.
    Hong S, Lee J, Kim M, Park Y, Park C, Kim MH, Jew SS, Park HG.
    J Am Chem Soc; 2011 Apr 06; 133(13):4924-9. PubMed ID: 21388212
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  • 4. Asymmetric synthesis of functionalized aza-cyclic amino acids with quaternary stereocenters by a phase-transfer-catalyzed alkylation strategy.
    Ooi T, Miki T, Maruoka K.
    Org Lett; 2005 Jan 20; 7(2):191-3. PubMed ID: 15646955
    [Abstract] [Full Text] [Related]

  • 5. A new powerful strategy for the organocatalytic asymmetric construction of a quaternary carbon stereogenic center.
    Inokoishi Y, Sasakura N, Nakano K, Ichikawa Y, Kotsuki H.
    Org Lett; 2010 Apr 02; 12(7):1616-9. PubMed ID: 20222687
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  • 6. Amidophosphane-copper(I)-catalyzed asymmetric conjugate addition of dialkylzinc reagents to racemic 6-substituted cyclohexenones to form 2,5-di- and 2,2,5-trisubstituted cyclohexanones.
    Selim K, Soeta T, Yamada K, Tomioka K.
    Chem Asian J; 2008 Feb 01; 3(2):342-50. PubMed ID: 18069713
    [Abstract] [Full Text] [Related]

  • 7. A novel catalytic asymmetric route towards skipped dienes with a methyl-substituted central stereogenic carbon.
    Huang Y, Fañanás-Mastral M, Minnaard AJ, Feringa BL.
    Chem Commun (Camb); 2013 Apr 25; 49(32):3309-11. PubMed ID: 23503498
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  • 10. Synthesis of Both Enantiomers of Chiral Phenylalanine Derivatives Catalyzed by Cinchona Alkaloid Quaternary Ammonium Salts as Asymmetric Phase Transfer Catalysts.
    Jin L, Zhao S, Chen X.
    Molecules; 2018 Jun 12; 23(6):. PubMed ID: 29895754
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  • 11. Phase-transfer-catalyzed asymmetric conjugate cyanation of alkylidenemalonates with KCN in the presence of a Brønsted acid additive.
    Liu Y, Shirakawa S, Maruoka K.
    Org Lett; 2013 Mar 15; 15(6):1230-3. PubMed ID: 23461761
    [Abstract] [Full Text] [Related]

  • 12. Highly enantioselective Michael reactions catalyzed by a chiral quaternary ammonium salt. Illustration by asymmetric syntheses of (S)-ornithine and chiral 2-cyclohexenones.
    Zhang FY, Corey EJ.
    Org Lett; 2000 Apr 20; 2(8):1097-100. PubMed ID: 10804563
    [Abstract] [Full Text] [Related]

  • 13. Development of highly diastereo- and enantioselective direct asymmetric aldol reaction of a glycinate Schiff base with aldehydes catalyzed by chiral quaternary ammonium salts.
    Ooi T, Kameda M, Taniguchi M, Maruoka K.
    J Am Chem Soc; 2004 Aug 11; 126(31):9685-94. PubMed ID: 15291572
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  • 16. An unusual electronic effect of an aromatic-F in phase-transfer catalysts derived from cinchona-alkaloid.
    Jew SS, Yoo MS, Jeong BS, Park IY, Park HG.
    Org Lett; 2002 Nov 28; 4(24):4245-8. PubMed ID: 12443069
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  • 17. The versatile roles of ammonium salt catalysts in enantioselective reduction and alkylation of α,β-unsaturated aldehydes: iminium catalysis, enamine catalysis and acid catalysis.
    Xiang SK, Zhang B, Zhang LH, Cui Y, Jiao N.
    Chem Commun (Camb); 2011 May 07; 47(17):5007-9. PubMed ID: 21424018
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  • 20. A systematic investigation of quaternary ammonium ions as asymmetric phase-transfer catalysts. Application of quantitative structure activity/selectivity relationships.
    Denmark SE, Gould ND, Wolf LM.
    J Org Chem; 2011 Jun 03; 76(11):4337-57. PubMed ID: 21446723
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