Abstract
The structural requirement for fluorescence in Schiff bases was defined. Aldehydes and amines were reacted and the structures of the Schiff bases N-hydroxyethyl-1-imino-2′,4′-hexadiene (I), N-1-benzal-2-hydroxyaminoethane (II), and N-1-benzal-2,2′-hydroxyaminoethane (III) were established by elemental analysis, IR spectral analysis and mass spectral analysis. The structures of N-alanyl-2-hydroxy-naphthylidine (IV) and N,N′-dileucinyl-1-amino-3-iminopropene (V) had been established previously. III, IV and V were fluorescent compounds and I and II were not. The results of these analyses suggest that an electron donating group in conjugation with an imine is the structure required for fluorescence.
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Malshet, V.G., Al Tappel, L. Fluorescent products of lipid peroxidation: I. Structural requirement for fluorescence in conjugated schiff bases. Lipids 8, 194–198 (1973). https://doi.org/10.1007/BF02544634
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DOI: https://doi.org/10.1007/BF02544634