Synthesis of an Epoxy Resin Curing Agent Containing Maleimide Group

Abstract

A novel N, N-(4-amino phenyl maleimide) diglycidyl amine (APMDGA) was synthesized from maleic anhydride, 4-nitroaniline, and epichlorohydrin by a few-step reactions via intermediate products N-(4-nitrophenyl)maleimide and N-(4-aminophenyl)maleimide. The chemical structure of APMDGA is confirmed by 1H-NMR, FT-IR, and EA. The synthesis conditions have also been investigated. The final product APMDGA shows a yellow solid, and the yield is 48.6%.

Biologically active thio‐pyrimidinones from base‐catalyzed thiol‐ene coupling with maleimides

“…This way, maleimides are excellent substrates for this type of reaction once their carboncarbon double bond is electron deficient due to the electron withdrawing effect of the two carbonyls neighboring the double bond [14]. The N-aryl-maleimides used herein were prepared via a two-step synthesis between maleic anhydride and aromatic amines [30]. Compound 6f, methyl 4-aminobenzoate, was synthesized from p-aminobenzoic acid (PABA) and then converted into its maleimide derivative.…”

“…Compounds 7a-f were synthesized using the methodology described by Tao et al [30]. from commercially available reagents.…”

The Theoretic Study of 1,3,5-3(4-N-Maleimido) Phenyl-1,3,5-Triazine Molecule Structure, Spectrum and Thermodynamic Properties

“…In this paper we take aminophenyl-Benzoxazine, formaldehyde, and Ethyl acetate as reagents synthesized 1,3,5-3(4-N-Maleimido) Phenyl-1,3,5-Triazine (TMIPT) molecule at room temperature. TMIPT is the important intermediates of antioxidant, thermo-stability resin compound, and we use TMIPT to synthesis several other compounds like 3-(4-N-maleimido) phenyl-2,4-dihydro-2H-1,3-benzoxazine molecule [5]. In order to get high performance Benzoxazine derivatives, we took use of the Quantum chemistry method to optimize and calculate TMIPT and acquired its Infrared spectrum, electronic absorption spectrum and thermodynamic properties.…”