Chemistry Department, University of Missouri University of Science and Technology, Rolla, MO 65401
Abstract:
The amide‐amine, 1,1′‐di(aminoethylaminocarbonylethyl)‐2,2′‐biimidazole (DAEPB) ( 1 ), and subsequent Schiff base imine product, 1,1′‐di(salicylaldiminoethylaminocarbonylethyl)‐2,2′‐biimidazole (DSEB) ( 2a ), have been synthesized from the ester, 1,1′‐di(ethoxycarbonylethyl)‐2,2′‐biimidazole (DEPB). Additionally, 1,1′‐di(salicylaldiminoethylaminocarbonylmethyl)‐2,2′‐biimidazole (DSMB) ( 2b ), was prepared from its corresponding amide‐amine. All compounds were characterized with FTIR, NMR and elemental analyses. The salicylaldimines, compounds ( 2a ) and ( 2b ), exhibit fluorescence at 540 and 520 nm, respectively, over a broad range of excitation wavelengths.
