Macrocycles

1. P. Knops, N. Sendhoff, H.-B. Mekelburger, F. Voegtle, Bonn/FRG HighDilution Reactions - New Synthetic Applications 2. A. Ostrowicki, E. Koepp, F. Voegtle, Bonn/FRG The "Cesium Effect": Syntheses of Medio- and Macrocyclic Compounds 3. J. Dohm, F. Voegtle, Bonn/FRG Synthesis of (Strained) Macrocycles by Sulfone Pyrolysis 4. Q. Meng, M. Hesse, Zurich/Switzerland Ring Closure Methods in the Synthesis of Macrocyclic Natural Products 5. J.L. Sessler, A.K. Burrell, Austin, TX/USA Expanded Porphyrins