Substituted Heterocyclic Compounds by Selective Control of Halogen-Dance Reactions (J. Frohlich). Heterocycles as Vehicles for Synthesis (A. Padwa). Three-Membered Ring Systems (A. Padwa, S.S. Murphree). Four-Membered Ring Systems (J. Parrick, L.K. Mehta). Five-Membered Ring Systems. Part 1: Thiophenes & Se & Te analogs (J.B. Press, R.K. Russell). Part 2: Pyrroles and benzo derivatives (R.J. Sundberg, P.V. Nguyen). Part 3: Furans and benzo derivatives (C.W. Bird). Part 4: With more than one N atom (S.A. Lang Jr, V.J. Lee). Part 5: With N & S (Se) atoms (R. Tanaka). Part 6: With O & S (Se, Te) atoms (R.A. Aitken). Part 7: With O & N atoms (G.V. Boyd). Six-Membered Ring Systems. Part 1: Pyridine and benzo derivatives (J.E. Toomey, R. Murugan). Part 2: Diazines and benzo derivatives (G. Heinisch, B. Matuszczak). Part 3: Triazines, tetrazines, and fused ring polyaza systems (D.T. Hurst). Part 4: With O and/or S atoms (J.D. Hepworth, B.M. Heron). Seven-Membered Rings (M. Balasubramanian). Eight-Membered and Larger Rings (G.R. Newkome). Subject Index.