Synthesis of new azo compounds based on N-(4-hydroxypheneyl)maleimide and N-(4-methylpheneyl)maleimide.
Maleic anhydride was reacted with p-aminophenol and p-toluidine in the presence of di-phosphorus pentoxide (P₂O₅) as a catalyst to produce two compounds: N-(4-hydroxy-phenyl)maleimide (I) and N-(4-methylphenyl)maleimide (II). The new azo compounds I(a-c) and II(a-c) were prepared by the reaction of I and II with three different aromatic amines, namely aniline, p-aminophenol and p-toluidine. The structures of these compounds were confirmed by CHN, FT-IR, ¹H-NMR, ¹³C-NMR, mass spectrum and UV/Vis spectroscopy.
School of Industrial Technology, Universiti Sains Malaysia, 11800 Penang, Malaysia. issam@usm.my
Issam Ahmed
IA
Mohammed
Asniza
A
Mustapha
D000627:Aminophenols / Q000737:chemistry; D001391:Azo Compounds / Q000138:chemical synthesis* / Q000737:chemistry; D008301:Maleimides / Q000737:chemistry*; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D014052:Toluidines / Q000737:chemistry
D000627:Aminophenols; D001391:Azo Compounds; D008301:Maleimides; D014052:Toluidines; C029370:4-toluidine; C026729:4-aminophenol