Privileged Chiral Ligands and Catalysts
1. Auflage April 2011
XXII, 462 Seiten, Hardcover
577 Abbildungen (8 Farbabbildungen)
26 Tabellen
Handbuch/Nachschlagewerk
Kurzbeschreibung
The ultimate "must have" and long awaited reference describes in detail the history, the basic structural characteristics, and the applications of the catalysts. A novel concept that explains why a certain ligand or catalyst becomes "privileged".
Catalytic asymmetric synthesis has been one of the most active research areas in chemistry (Nobel Prize in 2001). The development of efficient chiral catalysts plays a crucial role in asymmetric catalysis. Although many chiral ligands/catalysts have been developed in the past decades, the most efficient catalysts are derived from a few core structures, called "privileged chiral catalysts". This ultimate "must have" and long awaited reference for every chemist working in the field of asymmetric catalysis starts with the core structure of the catalysts, explaining why a certain ligand or catalyst is so successful. It describes in detail the history, the basic structural characteristics, and the applications of these "privileged catalysts". This novel presentation provides readers with a much deeper insight into the topic and makes it a must-have for organic chemists, catalytic chemists, chemists working with/on organometallics, chemists in industry, and libraries.
From the contents:
* BINAP
* Bisphosphacycles - From DuPhos and BPE to a Diverse Set of Broadly Applied Ligands
* Josiphos Ligands: From Discovery to Technical Applications
* Chiral Spiro Ligands
* Chiral Bisoxazoline Ligands
* PHOX Ligands
* Chiral Salen Complexes
* BINOL
* TADDOLate Ligands
* Cinchona Alkaloids
* Proline Derivatives
BINAP
Introduction: Structural Consideration
Hydrogenation of Olefins
Hydrogenation of Ketones
Isomerization of Allylamines and Allylalcohols
Hydroboration, Hydrosilylation, Hydroacylation, and Hydroamination
Allylic Alkylation
Heck Reaction
Aldol and Mannich-Type Reactions
Nucleophilic Additions to Carbonyl and Imino Compounds
Alpha-Substitution Reactions of Carbonyl Compounds
Michael-Type Reactions
Conjugate Additions Using Organoboron and Grignard Reagents
Diels-Alder Reaction
Ene Reaction
Cyclization
Ring-Opening Reactions
Concluding Remarks
BISPHOSPHACYCLES - FROM DuPHOS AND BPE TO A DIVERSE SET OF BROADLY APPLIED LIGANDS
Introduction
Development of Bisphosphacycle Ligands
Applications of Bisphosphacycle Ligands
Concluding Remarks
JOSIPHOS LIGANDS: FROM DISCOVERY TO TECHNICAL APPLICATIONS
Introduction and Background
Discovery and Development of the Josiphos Ligand Family
Why Are Josiphos Ligands So Effective?
Catalytic Profile of the Josiphos Ligand Family
Concluding Remarks
CHIRAL SPIRO LIGANDS
Introduction
Preparation of Chiral Spiro Ligands
Asymmetric Hydrogenation
Asymmetric Carbon-Carbon Bond Forming Reaction
Asymmetric Carbon-Heteroatom Bond Forming Reaction
Conclusion
CHIRAL BISOXAZOLINE LIGANDS
Introduction
Enantioselective Carbon-Carbon Bond Formation
Enantioselective Carbon-Heteroatom Bond Formation
Enantioselective Cycloaddition Reactions
Conclusions
PHOX LIGANDS
Introduction
Synthesis of PHOX Ligands
Nucleophilic Allylic Substitution
Decarboxylative Tsuji Allylations
Heck Reaction
Hydrogenation
Cycloadditions
Miscellaneous Reactions
Conclusion
CHIRAL SALEN COMPLEXES
Introduction
Synthesis of Chiral Salen Complexes
Structural Properties of Chiral Salen Complexes
Asymmetric Reactions Catalyzed by Chiral Salen Complexes
Conclusion and Outlook
BINOL
Introduction
Applications in Reduction and Oxidation
Metal/BINOL Chiral Lewis Acid Catalysts in Asymmetric C-C Bond Forming Reactions
Acid/Base Bifunctional Metal/BINOL Catalysts
BINOL in Organocatalysis
Summary
TADDOLATE LIGANDS
Introduction
Nucleophilic Additions to C=O Double Bonds
Nucleophilic Conjugate Additions to Electron-Deficient C=C Double Bonds
Nucleophilic Substitutions
Cycloaddition Reactions
Oxidation and Reduction Reactions
Miscellaneous Reactions
Conclusions
CINCHONA ALKALOIDS
Introduction
Metal Catalysis
Phase-Transfer Catalysis
Nucleophilic Catalysis
Base Catalysis
Cooperative and Multifunctional Catalysis
Conclusion
PROLINE DERIVATIVES
Introduction
Proline as Organocatalyst
Proline Analogs as Organocatalysts
5-Pyrrolidin-2-yltetrazole as Organocatalyst
Pyrrolidine-Based Sulfonamides as Organocatalysts
Pyrrolidine-Based Amides as Organocatalysts
Pyrrolidine Diamine Catalysts
Diarylprolinols or Diarylprolinol Ether Catalysts
Concluding Remarks