Progress in Heterocyclic Chemistry

Boron Heterocycles as Platforms for Building New Bioactive Agents (M.P. Groziak). Heterocyclic Phosphorus Ylides (R.A. Aitken and T. Massil). Palladium Chemistry in Pyridine Alkaloid Synthesis (J.J. Li). Three- and Four-Membered Ring Systems. Three-Membered Ring Systems (A. Padwa and S.S. Murphree). Four-Membered Ring Systems (L.K. Mehta and J. Parrick). Five-Membered Ring Systems. Thiophenes & Se, Te, Analogs (E.T. Pelkey). Pyrroles and Benzo Derivatives (D.M. Ketcha). Furans and Benzofurans (S. Greve and W. Friedrichsen). With More than One N Atom (L. Yet). With N & S (Se) Atoms (P.A. Bradley and D.J. Wilkins). With O & S (Se, Te) Atoms (R.A. Aitken). With O & N Atoms (T.L. Gilchrist). Six-Membered Ring Systems. Pyridines and Benzo Derivatives (R.D. Larsen and J.-F. Marcoux). Diazines and Benzo Derivatives (B.R. Lahue and J.K. Snyder). Triazines, Tetrazines and Fused Ring Polyaza Systems (C. Ochoa and P. Goya). With O and/or S Atoms (J. D. Hepworth and B.M. Heron). Seven-Membered Rings (D.J. LeCount). Eight-Membered and Larger Rings (G.R. Newkome).