Overview of the latest issue of Angewandte Chemie

Tetrazine quenches the fluorescence of various dyes; can be removed by light irradiation to switch the fluorescence back on

High-pressure jet cleaning of microfiltration membranes can restore up to 80 % of the original throughput

Mild, site-selective reaction of electron-rich heteroarenes with thiols

Brønsted-base catalyst with dual function

3D metallic cage protects enzymes while substrate molecules can still reach the active site

Oxidative dehydrogenation of propane does not proceed over an isolated boron site

Challenging polyquinane with six contiguous stereogenic centers

Organic trilithium compound reacts with group 3 halides to give dinuclear heptacyclic compounds

Inclusion of a seven-membered ring in nanographene ribbons can lead to enhanced two‐photon absorption