Main description:

This book provides the reader with an illustrative overview concerning successful and widely used applications of organocatalysis in the field of natural product synthesis. The main focus will be on organocatalytic key-steps for each (multi-step) synthesis described, whereas other often particularly innovative transformations will be omitted, as this would be beyond the scope of this volume.

Contents:

1 Introduction.- 2 Enamine Catalysis.- Aldol Reactions.- Mannich Reactions.- a-Heterofunctionalizations.- Conjugate Additions.- Dienamine Catalysis.- Combined Enamine-Catalyzed Approaches and Cascade Reactions.- Synopsis.- 3 Iminium Catalysis.- Pericyclic Reactions.- Conjugate Additions.- Iminium-Catalyzed Organocascade Reactions.- Synopsis.- 4 Combined Iminium-Enamine Catalyzed Approaches.- Cascade Reactions Using a Single Organocatalyst.- Organocascade Catalysis Using a Combination of Different Catalysts.- Synopsis.- 5 Singly Occupied Molecular Orbital (SOMO) Catalysis.- Friedel-Crafts Reactions.- Epoxide Formation.- Synopsis.- 6 Asymmetric Phase-Transfer Catalysis.- Asymmetric a-Alkylations.- Phase-Transfer Catalyzed Michael Additions.- Alkylative Dearomatization-Annulation Reaction.- Synopsis.- 7 Chiral Bronsted Acids and Hydrogen Bonding Donors.- Chiral Phosphoric Acids.- Chiral Diols.- Chiral (Thio)-Ureas.- Bifunctional Bronsted Acid-Base Active (Thio)-Ureas.- Synopsis.- 8 Chiral Bronsted and Lewis Bases.- Cinchona Alkaloids.- Phosphine Catalysis.- Carbene Catalysis.- Synopsis.- 9 Asymmetric Oxidations and Reductions.- Organocatalytic Oxidations.- Organocatalytic Reductions.- Synopsis.- 10 Conclusions.