| Abstract |
The Schiff base cryptand and its cryptates were synthesized with the methods of [1+1] condensation of trialdehyde and tris(2-aminoethyl)amine and obtained in 60-65\%, 5-25\% and 70-80\% yields respectively with or without some rare earth elements as templates. The polyoxa-aza cryptand was produced in 72\% and 60-70\% yields with reduction of Schiff base and its cryptates respectively. |