The synthesis of four new 1,3-oxazepines was accomplished by the reaction between maleic anhydride with Schiff bases. The Schiff-bases (a1-a2) were prepared from the reaction of aromatic aldehyde with aromatic amines. The newly synthesized compounds were characterized by spectral (FlT-IR, 1H NMR, 13C NMR) and elemental analytical data..
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Mohammed et al. (2024) studied this question.
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