Progress in Heterocyclic Chemistry, Volume 6, reviews critically the heterocyclic literature essentially published in 1993. The first two chapters are given over to reviews. The first review deals with the subject of the "halogen dance." The second review describes the application of selected "heterocycles as vehicles for synthesis." This type of review dealing mainly with five-membered ring transformations will prove useful to many readers. The remaining chapters describe advances in the heterocyclic field arranged according to ring-size, i.e., three-, four-, five-, six-, seven-, eight-membered rings, and larger rings. Numerous diagrams and a brief index will assist in locating areas of interest.

• Front Cover 2
• Progress in Heterocyclic Chemistry 5
• Copyright Page 6
• Table of Contents 7
• Foreword 9
• Advisory Editorial Board Members 10
• Chapter 1. Substituted Heterocyclic Compounds by Selective Control of Halogen-Dance Reactions 11
  • 1.1 INTRODUCTION 11
  • 1.2 DEVELOPMENT OF HALOGEN-DANCE CHEMISTRY 13
  • 1.3 NEW APPLICATIONS OF HALOGEN MIGRATIONS 30
  • 1.4 SUMMARY - How to Control Halogen Migrations 37
  • Acknowledgment 43
  • REFERENCES 44
• Chapter 2. Heterocycles as Vehicles for Synthesis 46
  • 2.1 INTRODUCTION 46