Synthesis and Characterization of New Schiff Base and Polyoxa-azaCryptands and Their Rare Earth Cryptates with 1+1 Condensation and Reduction Methods

摘要

The Schiff base cryptand and its cryptates were synthesized with the methods of [1+1]condensation oftrialdehyde 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-azacryptand was produced in 72% and 60-70% yields with reduction of Schiff base and its cryptatesrespectively.