| abstract |
The application relates to a process for the preparation of 1,4-diazabicyclo (2,2,2) octane and C-substituted 1,4-diazabicyclo (2,2,2) octanes of the formula in which R¹ and R² can denote hydrogen, alkyl having 1 to 4 carbon atoms or alkenyl radicals having 1 to 4 carbon atoms, by reacting heterocyclic amines of the formula in which R¹ and R² have the above meaning and R³ is hydrogen or hydroxyethyl or aminoethyl or X is HO or H₂N or hydroxyethyl or aminoethyl, in the presence of aluminosilicate zeolites as catalysts. The catalysts are synthesized without the addition of alkali in aqueous hexamethylenediamine or diaminopropane or triethylenetetramine solution. |