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Volumn 62, Issue 49, 2006, Pages 11425-11436

Asymmetric phase-transfer catalysis of homo- and heterochiral quaternary ammonium salts: development and application of conformationally flexible chiral phase-transfer catalysts

Author keywords

Asymmetric phase transfer alkylation; Atropinversion; Biphenyl unit; Conformational flexibility; Molecular design

Indexed keywords

BIPHENYL DERIVATIVE; BROMINE DERIVATIVE; HALIDE; QUATERNARY AMMONIUM DERIVATIVE; SCHIFF BASE;

EID: 33750440188     PISSN: 00404020     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.tet.2006.08.052     Document Type: Article
Times cited : (33)

References (60)
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    • For our related studies on the structural simplification of the catalyst, see:
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    • The reactivity and selectivity differences between homo- and heterochiral metal complexes have been well documented, especially in the studies on nonlinear effects in asymmetric synthesis. For a recent excellent review, see:
    • The reactivity and selectivity differences between homo- and heterochiral metal complexes have been well documented, especially in the studies on nonlinear effects in asymmetric synthesis. For a recent excellent review, see:. Girard C., and Kagan H.B. Angew. Chem., Int. Ed. 37 (1998) 2922
    • (1998) Angew. Chem., Int. Ed. , vol.37 , pp. 2922
    • Girard, C.1    Kagan, H.B.2
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    • For the use of conformationally flexible ligands in transition-metal catalyzed asymmetric synthesis, see:
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    • note
    • 1H NMR spectra of conformationally rigid, diastereomeric (S,S)-1 and (R,S)-1.
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    • The existence ratio was calculated from the equilibrium constant, which was obtained through Arrhenius plot. See, for example:
    • The existence ratio was calculated from the equilibrium constant, which was obtained through Arrhenius plot. See, for example:. Azumaya I., Kagechika H., Yamaguchi K., and Shudo K. Tetrahedron 51 (1995) 5277
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    • note
    • Crystallographic data for (S)-4l are summarized in Section 4. CCDC 616451 contains the supplementary crystallographic data for this manuscript. These data can be obtained free of charge from The Cambridge Crystallographic Data Centre via www.ccdc.cam.ac.uk/data_request/cif.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.