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Abstract
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Abstract
Novel derivatives of Schiff bases with diazene bonds and six new
2,5-disubstituted pyrimidine derivatives were synthesized by reaction of
2-substituted trimethinium salts with 4-aminoazobenzene or benzamidine
hydrochloride, respectively, by a simple method and using inexpensive
reagents. The purity and molecular structure of the new compounds were
determined by elemental analysis, mass spectrometry, infrared, ultraviolet/visible,
as well as proton nuclear magnetic resonance (1H NMR) and carbon-13
nuclear magnetic resonance (13C NMR) spectroscopy.
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