Results are presented of experiments in which the reactivity of the iodine-morpholine complex in the presence of morpho-'ine toward nine unsaturated compounds was tested. Compounds which reacted rapidly at room temperature were Irans-1, 2-dibenzoylethylene, trans-P-benzoylacrylic acid, cinnamaldehyde and P-njtrostyrene. Except in the case of cinnamaldehyde, the reaction products were isolated and characterized. Compounds ...