In this issue, S. Rej and N. Chatani review rhodium-catalyzed C–H bond functionalization assisted by removable directing groups. What are the key strategies? The Minireviews deal with multivalent chelators for in vivo protein labeling (R. Wieneke, R. Tampé) and atomically tailored gold nanoclusters for catalysis (R. Jin et al.). In their Guest Editorial, J. S. Francisco et al. advocate securing academic freedom through networks.

In the Communications section, P. Barpanda et al. present sodium cobalt metaphosphate as an efficient oxygen evolution catalyst in alkaline solution. K. Itami et al. describe a dehydrogenative synthesis of 2,2′-bipyridyls through regioselective pyridine dimerization. B. S. Moore et al. reveal the biosynthesis of L-4-chlorokynurenine, an antidepressant prodrug and non-proteinogenic amino acid.

• Angewandte Chemie 25/2019: Giving Directions,
  Angew. Chem. Int. Ed. 2019, 58 (25).