ChemInform Abstract Irradiation of the divinylamine (I) with the maleimides (II) yields the fused 7-azanorbornanes (III). Photolysis of a 1:1 mixture of (I) and the bismaleimides (IV) produces the 1:1 adducts (V) and the 2:1 adducts (VI), whereas photocycloaddition of (IV) with two equivalents of (I) exclusively forms the bisadducts (VI).