Abstract Reactions of potassium dihaloiodates with arylcyclopropanes and polycyclic compounds containing a cyclopropane fragment characterized by different degrees of strain lead to formation of mixed 1, 3-halogenation products. If iodohalogenation should give rise to products having a iodine atom in the benzylic position, 1, 3-dichloro or 1, 3-dibromo derivatives are formed. Iodohalogenation of exo-tricyclo [3.2. 1.0 2, 4] octane is ...