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  • 1
    Online Resource
    Online Resource
    Newark :John Wiley & Sons, Incorporated,
    Keywords: Asymmetric synthesis. ; Organic compounds -- Synthesis. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (535 pages)
    Edition: 1st ed.
    ISBN: 9780471465249
    DDC: 547/.2
    Language: English
    Note: Intro -- PRINCIPLES AND APPLICATIONS OF ASYMMETRIC SYNTHESIS -- CONTENTS -- Preface -- Abbreviations -- 1 Introduction -- 1.1 The Significance of Chirality and Stereoisomeric Discrimination -- 1.2 Asymmetry -- 1.2.1 Conditions for Asymmetry -- 1.2.2 Nomenclature -- 1.3 Determining Enantiomer Composition -- 1.3.1 Measuring Specific Rotation -- 1.3.2 The Nuclear Magnetic Resonance Method -- 1.3.3 Some Other Reagents for Nuclear Magnetic Resonance Analysis -- 1.3.4 Determining the Enantiomer Composition of Chiral Glycols or Cyclic Ketones -- 1.3.5 Chromatographic Methods Using Chiral Columns -- 1.3.6 Capillary Electrophoresis with Enantioselective Supporting Electrolytes -- 1.4 Determining Absolute Configuration -- 1.4.1 X-Ray Diffraction Methods -- 1.4.2 Chiroptical Methods -- 1.4.3 The Chemical Interrelation Method -- 1.4.4 Prelog's Method -- 1.4.5 Horeau's Method -- 1.4.6 Nuclear Magnetic Resonance Method for Relative Configuration Determination -- 1.5 General Strategies for Asymmetric Synthesis -- 1.5.1 "Chiron" Approaches -- 1.5.2 Acyclic Diastereoselective Approaches -- 1.5.3 Double Asymmetric Synthesis -- 1.6 Examples of Some Complicated Compounds -- 1.7 Some Common Definitions in Asymmetric Synthesis and Stereochemistry -- 1.8 References -- 2 a-Alkylation and Catalytic Alkylation of Carbonyl Compounds -- 2.1 Introduction -- 2.2 Chirality Transfer -- 2.2.1 Intra-annular Chirality Transfer -- 2.2.2 Extra-annular Chirality Transfer -- 2.2.3 Chelation-Enforced Intra-annular Chirality Transfer -- 2.3 Preparation of Quaternary Carbon Centers -- 2.4 Preparation of a-Amino Acids -- 2.5 Nucleophilic Substitution of Chiral Acetal -- 2.6 Chiral Catalyst-Induced Aldehyde Alkylation: Asymmetric Nucleophilic Addition -- 2.7 Catalytic Asymmetric Additions of Dialkylzinc to Ketones: Enantioselective Formation of Tertiary Alcohols. , 2.8 Asymmetric Cyanohydrination -- 2.9 Asymmetric a-Hydroxyphosphonylation -- 2.10 Summary -- 2.11 References -- 3 Aldol and Related Reactions -- 3.1 Introduction -- 3.2 Substrate-Controlled Aldol Reaction -- 3.2.1 Oxazolidones as Chiral Auxiliaries: Chiral Auxiliary-Mediated Aldol-Type Reactions -- 3.2.2 Pyrrolidines as Chiral Auxiliaries -- 3.2.3 Aminoalcohols as the Chiral Auxiliaries -- 3.2.4 Acylsultam Systems as the Chiral Auxiliaries -- 3.2.5 a-Silyl Ketones -- 3.3 Reagent-Controlled Aldol Reactions -- 3.3.1 Aldol Condensations Induced by Chiral Boron Compounds -- 3.3.2 Aldol Reactions Controlled by Corey's Reagents -- 3.3.3 Aldol Condensations Controlled by Miscellaneous Reagents -- 3.4 Chiral Catalyst-Controlled Asymmetric Aldol Reaction -- 3.4.1 Mukaiyama's System -- 3.4.2 Asymmetric Aldol Reactions with a Chiral Ferrocenylphosphine-Gold(I) Complex -- 3.4.3 Asymmetric Aldol Reactions Catalyzed by Chiral Lewis Acids -- 3.4.4 Catalytic Asymmetric Aldol Reaction Promoted by Bimetallic Catalysts: Shibasaki's System -- 3.5 Double Asymmetric Aldol Reactions -- 3.6 Asymmetric Allylation Reactions -- 3.6.1 The Roush Reaction -- 3.6.2 The Corey Reaction -- 3.6.3 Other Catalytic Asymmetric Allylation Reactions -- 3.7 Asymmetric Allylation and Alkylation of Imines -- 3.8 Other Types of Addition Reactions: Henry Reaction -- 3.9 Summary -- 3.10 References -- 4 Asymmetric Oxidations -- 4.1 Asymmetric Epoxidation of Allylic Alcohols: Sharpless Epoxidation -- 4.1.1 The Characteristics of Sharpless Epoxidation -- 4.1.2 Mechanism -- 4.1.3 Modifications and Improvements of Sharpless Epoxidation -- 4.2 Selective Opening of 2,3-Epoxy Alcohols -- 4.2.1 External Nucleophilic Opening of 2,3-Epoxy Alcohols -- 4.2.2 Opening by Intramolecular Nucleophiles -- 4.2.3 Opening by Metallic Hydride Reagents -- 4.2.4 Opening by Organometallic Compounds. , 4.2.5 Payne Rearrangement and Ring-Opening Processes -- 4.2.6 Asymmetric Desymmetrization of meso-Epoxides -- 4.3 Asymmetric Epoxidation of Symmetric Divinyl Carbinols -- 4.4 Enantioselective Dihydroxylation of Olefins -- 4.5 Asymmetric Aminohydroxylation -- 4.6 Epoxidation of Unfunctionalized Olefins -- 4.6.1 Catalytic Enantioselective Epoxidation of Simple Olefins by Salen Complexes -- 4.6.2 Catalytic Enantioselective Epoxidation of Simple Olefins by Porphyrin Complexes -- 4.6.3 Chiral Ketone-Catalyzed Asymmetric Oxidation of Unfunctionalized Olefins -- 4.7 Catalytic Asymmetric Epoxidation of Aldehydes -- 4.8 Asymmetric Oxidation of Enolates for the Preparation of Optically Active a-Hydroxyl Carbonyl Compounds -- 4.8.1 Substrate-Controlled Reactions -- 4.8.2 Reagent-Controlled Reactions -- 4.9 Asymmetric Aziridination and Related Reactions -- 4.9.1 Asymmetric Aziridination -- 4.9.2 Regioselective Ring Opening of Aziridines -- 4.10 Summary -- 4.11 References -- 5 Asymmetric Diels-Alder and Other Cyclization Reactions -- 5.1 Chiral Dienophiles -- 5.1.1 Acrylate -- 5.1.2 a,b-Unsaturated Ketone -- 5.1.3 Chiral a,b-Unsubstituted N-Acyloxazolidinones -- 5.1.4 Chiral Alkoxy Iminium Salt -- 5.1.5 Chiral Sulfinyl-Substituted Compounds as Dienophiles -- 5.2 Chiral Dienes -- 5.3 Double Asymmetric Cycloaddition -- 5.4 Chiral Lewis Acid Catalysts -- 5.4.1 Narasaka's Catalyst -- 5.4.2 Chiral Lanthanide Catalyst -- 5.4.3 Bissulfonamides (Corey's Catalyst) -- 5.4.4 Chiral Acyloxy Borane Catalysts -- 5.4.5 Bronsted Acid-Assisted Chiral Lewis Acid Catalysts -- 5.4.6 Bis(Oxazoline) Catalysts -- 5.4.7 Amino Acid Salts as Lewis Acids for Asymmetric Diels-Alder Reactions -- 5.5 Hetero Diels-Alder Reactions -- 5.5.1 Oxo Diels-Alder Reactions -- 5.5.2 Aza Diels-Alder Reactions -- 5.6 Formation of Quaternary Stereocenters Through Diels-Alder Reactions. , 5.7 Intramolecular Diels-Alder Reactions -- 5.8 Retro Diels-Alder Reactions -- 5.9 Asymmetric Dipolar Cycloaddition -- 5.10 Asymmetric Cyclopropanation -- 5.10.1 Transition Metal Complex-Catalyzed Cyclopropanations -- 5.10.2 The Catalytic Asymmetric Simmons-Smith Reaction -- 5.11 Summary -- 5.12 References -- 6 Asymmetric Catalytic Hydrogenation and Other Reduction Reactions -- 6.1 Introduction -- 6.1.1 Chiral Phosphine Ligands for Homogeneous Asymmetric Catalytic Hydrogenation -- 6.1.2 Asymmetric Catalytic Hydrogenation of C=C Bonds -- 6.2 Asymmetric Reduction of Carbonyl Compounds -- 6.2.1 Reduction by BINAL-H -- 6.2.2 Transition Metal-Complex Catalyzed Hydrogenation of Carbonyl Compounds -- 6.2.3 The Oxazaborolidine Catalyst System -- 6.3 Asymmetric Reduction of Imines -- 6.4 Asymmetric Transfer Hydrogenation -- 6.5 Asymmetric Hydroformylation -- 6.6 Summary -- 6.7 References -- 7 Applications of Asymmetric Reactions in the Synthesis of Natural Products -- 7.1 The Synthesis of Erythronolide A -- 7.2 The Synthesis of 6-Deoxyerythronolide -- 7.3 The Synthesis of Rifamycin S -- 7.3.1 Kishi's Synthesis in 1980 -- 7.3.2 Kishi's Synthesis in 1981 -- 7.3.3 Masamune's Synthesis -- 7.4 The Synthesis of Prostaglandins -- 7.4.1 Three-Component Coupling -- 7.4.2 Synthesis of the w-Side Chain -- 7.4.3 The Enantioselective Synthesis of (R)-4-Hydroxy-2-Cyclopentenone -- 7.5 The Total Synthesis of Taxol-A Challenge and Opportunity for Chemists Working in the Area of Asymmetric Synthesis -- 7.5.1 Synthesis of Baccatin III, the Polycyclic Part of Taxol -- 7.5.2 Asymmetric Synthesis of the Taxol Side Chain -- 7.6 Summary -- 7.7 References -- 8 Enzymatic Reactions and Miscellaneous Asymmetric Syntheses -- 8.1 Enzymatic and Related Processes -- 8.1.1 Lipase/Esterase-Catalyzed Reactions -- 8.1.2 Reductions -- 8.1.3 Enantioselective Microbial Oxidation. , 8.1.4 Formation of C-C Bond -- 8.1.5 Biocatalysts from Cultured Plant Cells -- 8.2 Miscellaneous Methods -- 8.2.1 Asymmetric Synthesis Catalyzed by Chiral Ferrocenylphosphine Complex -- 8.2.2 Asymmetric Hydrosilylation of Olefins -- 8.2.3 Synthesis of Chiral Biaryls -- 8.2.4 The Asymmetric Kharasch Reaction -- 8.2.5 Optically Active Lactones from Metal-Catalyzed Baeyer-Villiger-Type Oxidations Using Molecular Oxygen as the Oxidant -- 8.2.6 Recent Progress in Asymmetric Wittig-Type Reactions -- 8.2.7 Asymmetric Reformatsky Reactions -- 8.2.8 Catalytic Asymmetric Wacker Cyclization -- 8.2.9 Palladium-Catalyzed Asymmetric Alkenylation of Cyclic Olefins -- 8.2.10 Intramolecular Enyne Cyclization -- 8.2.11 Asymmetric Darzens Reaction -- 8.2.12 Asymmetric Conjugate Addition -- 8.2.13 Asymmetric Synthesis of Fluorinated Compounds -- 8.3 New Concepts in Asymmetric Reaction -- 8.3.1 Ti Catalysts from Self-Assembly Components -- 8.3.2 Desymmetrization -- 8.3.3 Cooperative Asymmetric Catalysis -- 8.3.4 Stereochemical Nonlinear Effects in Asymmetric Reaction -- 8.3.5 Chiral Poisoning -- 8.3.6 Enantioselective Activation and Induced Chirality -- 8.4 Chiral Amplification, Chiral Autocatalysis, and the Origin of Natural Chirality -- 8.5 Summary -- 8.6 References -- Index.
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  • 2
    Publication Date: 2022-05-25
    Description: Author Posting. © American Geophysical Union, 2012. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Geophysical Research Letters 39 (2012): L20713, doi:10.1029/2012GL053322.
    Description: Characteristics of the Indian and Australian summer monsoon systems, their seasonality and interactions are examined in a variety of observational datasets and in the Coupled Model Intercomparison Project Phase 3 and 5 (CMIP3 and CMIP5) climate models. In particular, it is examined whether preferred monsoon transitions between the two regions and from one year to another, that form parts of the Tropospheric Biennial Oscillation, can lead to improved predictive skill. An overall improvement in simulation of seasonality for both monsoons is seen in CMIP5 over CMIP3, with most CMIP5 models correctly simulating very low rainfall rates outside of the monsoon season. The predictability resulting from each transition is quantified using a Monte Carlo technique. The transition from strong/weak Indian monsoon to strong/weak Australian monsoon shows ∼15% enhanced predictability in the observations, in estimating whether the following monsoon will be stronger/weaker than the climatology. Most models also successfully simulate this transition. However, enhanced predictability for other transitions is less clear.
    Description: This project was supported by funding from the Australian Research Council (DP110100601) and the Centre of Excellence for Climate System Science. This work was also supported by an award under the Merit Allocation Scheme on the NCI National Facility at the ANU
    Description: 2013-04-26
    Keywords: Australian monsoon ; CMIP models ; Indian monsoon ; Tropospheric biennial oscillation
    Repository Name: Woods Hole Open Access Server
    Type: Article
    Format: application/pdf
    Format: text/plain
    Format: application/postscript
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