Chapter 1 General Introduction 1 |
1.1 Nature of Organofluorine Compounds 1 |
1.1.1 Brief History 1 |
1.1.2 Properties of the Fluorine Atom 2 |
1.1.3 Fluorine Effects in Organic Compounds 3 |
1.1.4 Properties of Fluoroorganic Compounds 10 |
1.1.5 Properties of Perfluoroorganic Compounds 13 |
1.1.6 Spectroscopic Properties 14 |
1.2 Source of Fluorine 18 |
1.2.1 Hydrogen Fluoride 18 |
1.2.2 Fluorine Gas 18 |
1.3 Toxicity of Fluorinating Reagents 19 |
1.3.1 Hydrogen Fluoride and Fluorine Gas 19 |
1.3.2 First-Aid Treatment 20 |
1.3.3 Fluoroacetic Acid 21 |
Chapter 2 Reagents for Fluorination 25 |
2.1 Electrophilic Fluorinating Reagents 25 |
2.1.1 Fluorine Gas 25 |
2.1.2 Xenon Difluoride 28 |
2.1.3 Electrophilic Reagents Containing an O-F Bond 29 |
2.1.4 Electrophilic Reagents Containing an N-F Bond 34 |
2.2 Nucelophilic Fluorinating Reagents 39 |
2.2.1 Hydrogen Fluoride and Derivatives 39 |
2.2.2 Functional Group Transformation 43 |
2.2.3 Fluoride Reagents 48 |
2.3 Combination of an Electrophile and a Fluoride Reagent 56 |
2.3.1 Halofluorination of Olefins and Acetylenes 56 |
2.3.2 Thiofluorination and Selenofluorination of Olefins 58 |
2.3.3 Nitrofluorination 59 |
2.3.4 Oxidative Fluorination 58 |
2.3.5 Oxidative Desulfurization-Fluorination 61 |
2.3.6 Oxidative Fluorination of Amines 65 |
2.4 Electrochemical Fluorination 66 |
Chapter 3 Organofluorine Building Blocks 77 |
3.1 Fluorine-Substituted Nucleophilic Reagents 77 |
3.1.1 Alkylmetals 77 |
3.1.2 Alkenylmetals 84 |
3.1.3 Alkynylmetals 91 |
3.1.4 Metal Enolates 93 |
3.2 Fluorine-Substituted Electrophilic Reagents 99 |
3.3 Fluorine-Substituted Radicals 103 |
3.4 Fluorine-Substituted Carbenes 107 |
3.5 Electrophilic Perfluoroalkylating Reagents 111 |
3.5.1 (Perfluoroalkyl)aryliodonium Salts 111 |
3.5.2 (Polyfluoroalkyl)aryliodonium Salts 112 |
3.5.3 (Trifluoromethyl)chalcogenium Salts 113 |
Chapter 4 Reactions of C-F Bonds 119 |
4.1 Fluorine Leaving Group 119 |
4.1.1 1-Fluoro Sugars 119 |
4.1.2 Aromatic Nucleophilic Substitution 121 |
4.2 C-F Bond Activation by Metal Complexes 125 |
4.2.1 Activation of an Aliphatic C-F Bond 125 |
4.2.2 Activation of an Aromatic C-F Bond 126 |
4.3 Interaction of Fluorine with a Proton or Metal 128 |
4.3.1 Fluorine-Hydrogen Interaction 128 |
4.3.2 Fluorine-Metal Interaction 129 |
Chapter 5 Biologically Active Organofluorine Compounds 137 |
5.1 Fluorine Effect in Biological Activity 137 |
5.2 Strategies for Design and Synthesis 141 |
5.2.1 Structure-Activity Relationship 141 |
5.2.2 Commercially Available Fluorinated Materials 143 |
5.3 Fluorinated Amino Acids and Carbohydrates 144 |
5.3.1 Amino Acids 144 |
5.3.2 Protease Inhibitors 148 |
5.3.3 Carbohydrates 150 |
5.3.4 Nucleosides 151 |
5.4 Fluorine-Containing Pharmaceuticals 154 |
5.4.1 Prostanoids 154 |
5.4.2 Vitamin D3 157 |
5.4.3 Central Nervous System Agents 160 |
5.4.4 Antibacterials and Antifungals 161 |
5.4.5 βーLactam Antibiotics 164 |
5.4.6 Anesthetics 164 |
5.4.7 Artificial Blood Substitutes 165 |
5.4.8 18F-Labeled Tracers for Positron Emission Tomography 166 |
5.5 Fluorine-Containing Agrochemicals 166 |
5.5.1 Insecticides 167 |
5.5.2 Herbicides 173 |
5.5.3 Fungicides 177 |
Chapter 6 Fluorine-Containing Materials 183 |
6.1 Fluorine Effect in Materials 183 |
6.1.1 Boiling Points and Melting Points 184 |
6.1.2 Solubility 186 |
6.1.3 Surface Tension 186 |
6.1.4 Refractive Index 187 |
6.1.5 Viscosity 187 |
6.2 Chlorofluorocarbons, Hydrochlorofluorocarbons, Hydrofluorocarbons, and Alternatives 188 |
6.2.1 Brief History 188 |
6.2.2 Production of Chlorofluorocarbons and Hydrochlorofluorocarbons 191 |
6.2.3 Syntheses of CFC Alternatives 192 |
6.2.4 Evaluation of Safety and Environmental Effects 195 |
6.2.5 Alternatives to the Third Generation 196 |
6.3 Fluorine-Containing Liquid Crystals 196 |
6.3.1 Nematic Liquid Crystals 197 |
6.3.2 Ferroelectric Liquid Crystals 202 |
6.3.3 Antiferroelectric Liquid Crystals 209 |
6.4 Fluorine-Containing Polymers 212 |
6.4.1 Brief History 212 |
6.4.2 Monomer Synthesis 214 |
6.4.3 Fluoroplastics 216 |
6.4.4 Fluoroelastomers 220 |
6.4.5 Fluoropolymer Coatings 224 |
6.4.6 Fluorosurfactants 225 |
6.4.7 Fluorinated Membranes 228 |
Chapter 7 Fluorous Media 235 |
7.1 Organic Reactions in Perfluorocarbons 235 |
7.2 Fluorous Biphase Reactions 237 |
7.2.1 Hydroformylation 237 |
7.2.2 Oxidation 239 |
7.3 Purification and Isolation by Phase Separation 243 |
Chapter 8 Organic Reactions with Fluorinated Reagents 249 |
8.1 Fluoride Ion in Organic Synthesis 249 |
8.1.1 Fluoride Base 249 |
8.1.2 Desilylative Elimination and Deprotection 250 |
8.1.3 Naked Anions and Fluorosilicates 252 |
8.2 Trifluoroacetic Acid and Trifluoroperacetic Acid 255 |
8.2.1 Trifluoroacetic Acid 255 |
8.2.2 Trifluoroperacetic Acid 256 |
8.3 Trifluoromethanesulfonic Acid and Derivatives 257 |
8.3.1 Trifluoromethanesulfonic Acid 257 |
8.3.2 Trimethylsilyl Trifluoromethanesulfonate 258 |
8.3.3 Metal Trifluoromethanesulfonates 259 |
Subject Index 265 |
Chapter 1 General Introduction 1 |
1.1 Nature of Organofluorine Compounds 1 |
1.1.1 Brief History 1 |
1.1.2 Properties of the Fluorine Atom 2 |
1.1.3 Fluorine Effects in Organic Compounds 3 |
1.1.4 Properties of Fluoroorganic Compounds 10 |