| Introduction / 1： |
| Mechanisms of Reactions. Electron Delocalization and Resonance |
| Electrocyclic Reactions / 2： |
| Conrotatory and Disrotatory Processes |
| Explanations for the Woodward-Hoffman Rules |
| Electrocyclic Reactions with Odd Numbers of Atoms |
| Photochemical Cyclizations |
| Cycloaddiction and Cycloreversion Reactions / 3： |
| Suprafacial and Antarafacial Addition |
| Selection Rules for Cycloaddition and Cycloreversion Reactions |
| Examples of Thermal Cycloaddition Reactions |
| Photochemical Cycloadditions |
| Sigmatropic Reactions / 4： |
| Theory of Sigmatropic Shifts |
| Experimental Observations |
| Sigmatropic Rearrangements of Charged Systems |
| Linear Free-Energy Relationships / 5： |
| The Hammett Equation |
| Separation of Polar, Resonance, and Steric Effects |
| Migrations to Electron-Deficient Centers / 6： |
| Migrations to Electron-Deficient Carbons |
| The Nature of the Migrating Groups |
| Rearrangements of Carbocations. Long-Distance Migrations |
| Migrations to Nitrogen and Oxygen |
| Neighboring-Group Effects and Nonclassical Cations / 7： |
| Substitution with Retention of Configuration |
| Cyclic Halonium Ions |
| Sulfur and Nitrogen Mustards |
| Trans/Cis Rate Ratios. Neighboring Acetoxy Groups |
| Cyclic Phenonium Ions. Double Bonds as Neighboring Groups |
| Cyclopropane Rings as Neighboring Groups |
| Neighboring Alkyl Groups: 2-Norbornyl Cations |
| Rearrangements of Carbanions and Free Radicals / 8： |
| Carbanion Rearrangements |
| Rearrangements of Free Radicals |
| Carbenes, Carbenoids, and Nitrenes / 9： |
| Formation of Carbenes and Nitrenes |
| Singlet and Triplet Carbenes. Additions to Double Bonds |
| Insertion Reactions. Rearrangements |
| Six-Membered Heterocyclic Rings / 10： |
| Aromatic Heterocyclic Molecules |
| Reactions of Pyridine and Its Analogs |
| Synthesis of Six-Membered Heterocyclic Rings |
| Five-Membered Heterocyclic Rings / 11： |
| Electron Delocalization and Aromaticity |
| Reactions of Five-Membered Heterocyclic Rings |
| Synthesis of Five-Membered Heteroaromatic Rings |
| Index |
| Introduction / 1： |
| Mechanisms of Reactions. Electron Delocalization and Resonance |
| Electrocyclic Reactions / 2： |
| Conrotatory and Disrotatory Processes |
| Explanations for the Woodward-Hoffman Rules |
| Electrocyclic Reactions with Odd Numbers of Atoms |
