abstract |
The invention relates to a method for reducing the quantity of an unsaturated cyclic imine (I) of formula (I) in a mixture containing hexamethylenediamine and an imine (I), R1 meaning an alkenyl radical with 3, 4, 5, 6, 7, 8, 9, 10, 11 carbon atoms belonging to the ring system, by electrochemically converting the imine (I) into a saturated cyclic amine of formula (II) in the presence of solvated protons. |