abstract |
(57) [Summary] (Modified) [Constitution] General formula I: An unsaturated amine of the general formula II: 2-alkenals and the general formula III: Of the compound of the general formula IV: 1,3-diamine, for example N, N'-diisopropyl-2-methyl-1,3-propanediamine, is prepared. [Effect] It can be carried out in a good yield without removing water of reaction. |