The morpholine enamines of cyclohexanone, cyclopentanone, desoxybenzoin, and 2- methylcyclohexanone reacted with nitroethylene and 2-acetoxynitroethsne to give aminocyclobutanes or alkylated enamines. The corresponding nitroethyl ketones were formed on acid hydrolysis. Reactions of the first three enamines and of the pyrrolidine enamine of butyraldehyde with nitrostyrene gave similar condensation products. Factors ...
