Rhodium-catalyzed enantioselective additions of aryl and vinyl boronic acids to cyclobutenone ketals

Strategy based on radical C–H abstraction

Unusual structural motif realized by using electron-withdrawing groups

Role of aryloxyl radicals investigated

Cyclization of o-haloarylalkynes in the presence of Te

Porous materials based on dibenzopentalene

Transformation gives a range of bicyclic and monocyclic products

Overview of the latest issue of Angewandte Chemie

Natural product found in ipecac root

Trimer and tetramer synthesized from a dibrominated carbaporphyrin precursor