In recent years, halogen bonding (XB) has been thoroughly established as a useful tool in organocatalysis. By now a wide range of reactions, such as Diels-Alder reactions, Povarov and Nazarov cyclizations, Michael additions and many more have been catalyzed by this non-covalent interaction of a Lewisbasic substrate with a catalyst bearing electrophilic halogen(s). The polarization of these halogen substituents in the catalyst is typically achieved by close-by electron-withdrawing groups like fluorinated backbones or cationic heteroaromatics. Both approaches come with their own disadvantages though. (Per-)fluorinated materials are persistent pollutants, their environmental and health impact is under scrutiny, and the synthesis of polyfluorinated iodinated compounds can be challenging; Cationic catalysts, on the other hand, can suffer from solubility issues and often rely on the use of noncoordinating counterions.