Rearrangements in Ground and Excited States

List of Contributors

Foreword

Contents of Other Volumes

Essay 1 Rearrangements of Carbocations

I. Introduction

II. Directly Observable Carbocations

III. Multiple Rearrangement Reactions

IV. Theoretical Studies

V. Conclusions

References

Essay 2 Gas-Phase Ion Rearrangements

I. Introduction

II. Importance of Metastable Peaks

III. Potential Energy Profile Approach

IV. Types of Potential Energy Profiles

V. Conclusions

References

Essay 3 Rearrangements of Carbenes and Nitrenes

I. General Introduction

II. 1,2 Rearrangements of Carbenes and Nitrenes

III. Type 1 Carbene-Carbene and Carbene-Nitrenes Rearrangements

IV. Type II Carbene-Carbene Rearrangements

References

Essay 4 Free-Radical Rearrangements

I. Introduction

II. Measurement of Rates of Unimolecular Radical Reactions

III. Rearrangement by Transfer of a Carbon-Centered Group

IV. Ring-Closure Reactions

V. Ring-Opening Reactions

VI. Rearrangement by Transfer of a Heteroatom-Centered Group

VII. Isomerization by Transfer of a Halogen Atom

VIII. Isomerization by Hydrogen Atom Transfer

IX. Rotation

X. Inversion

References

Essay 5 Hypothetical Biradical Pathways in Thermal Unimolecular Rearrangements

I. Introduction

II. 1,1 Biradicals (Carbenes)

III. 1,3 Biradicals

IV. 1,4 Biradicals

V. Biradicals in [1,3] and [1,5] Sigmatropic Rearrangements: Some Comments on the Principle of Least Motion 372

References

Essay 6 Rearrangements in Carbanions

I. Migration of Saturated Groups

II. Migration of Unsaturated Carbon

III. Migrations in Doubly Bonded Oxygen

References

Index