In this issue, F. Caruso et al. review phenolic building blocks for the assembly of functional materials. How are they useful in the preparation of thin films, particles, and bulk materials? In Minireviews, S. M. Huber et al. give an overview of chalcogen bonding, and G. Belfort summarizes membrane filtration with liquids.

In the Communications section, J. P. Holland et al. present photochemical conjugation and one-pot radiolabeling of antibodies for immuno-positron emission tomography. J. Sun et al. reveal access to N-substituted 2-pyridones by catalytic intermolecular dearomatization and 1,4-acyl transfer. M. A. Petrukhina et al. describe structural and electronic effects of stepwise reduction of a tetraaryl[3]cumulene.

• Angewandte Chemie 7/2019: Building Blocks,
  Angew. Chem. Int. Ed. 2019, 58 (7).