Synthesis of salicylaldimine Schiff bases with benzo-10-aza-15-crown-5 pendant

A series of azacrown ether substituted salicylaidimine Schiff bases 3a-c, 5a-c, and 6a-c have been synthesized by the condensation of salicylaldehyde with azacrown ether-containing arylamine or amino-compounds with azacrown ether-containing salicylaldehyde from benzo-10-aza-15-crown-5. The new structure was elucidated by spectral methods and confirmed by x-ray crystallographic analysis.