Phenanthrenequinoneimine reacts with piperidinocyclopentene, piperidinocyclohexene and morpholinocyclopentene to give (Ila-c). However, the reaction between phenantherenequino- neimine with morpholinocyclohexene yields (III). The structures of the products are discussed. Phenanthrenequinone mono-oxime reacts with piperidinocyclopentene, piperidinocyclohexene and morpholinocyclopentene to give (Vlla-c), and it reacts with morpholinocyclohexene tö give