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Synthesis 1990; 1990(7): 541-549
DOI: 10.1055/s-1990-26935
review
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Asymmetric Synthesis Utilizing External Chiral Ligands

Kiyoshi Tomioka*
  • *Faculty of Pharmaceutical Sciences, University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113, Japan
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Publikationsdatum:
17. September 2002 (online)

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This review examines some typical examples that illustrate the significant developments reported recently, in which external chiral ligands have been used as asymmetric controllers in stoichiometric and catalytic amounts. 1 . Introduction 2. Carbon-Carbon Bond Formation 2.1. Addition of Organometals to Aldehydes and Ketones 2.2. Addition of Organometals to α,β-Unsaturated Carbonyl Compounds 2.3. Alkylation of Enolates 2.4. Diels-Alder Reaction 2.5. Others 3. Deprotonation Using Chiral Lithium Amides 4. Oxidation 4.1. Epoxidation 4.2. Dihydroxylation 5. Reduction 6. Others 7. Conclusion

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