Synthesis and styrene copolymerization of novel dimethyl and dimethoxy ring-substituted isobutyl phenylcyanoacrylates

24 February 2022, Version 1

Abstract

Novel dimethyl and dimethoxy ring-disubstituted isobutyl phenylcyanoacrylates, RPhCH=C(CN)CO2CH2CH(CH3)2 , where R is 2,3-dimethyl, 2,4-dimethyl, 3,5-dimethyl, 2,3-dimethoxy, 2,4-dimethoxy, 2,5-dimethoxy, 2,6-dimethoxy, 3,4-dimethoxy, 3,5-dimethoxy were synthesized by the piperidine catalyzed Knoevenagel condensation of ring-disubstituted benzaldehydes and isobutyl cyanoacetate and characterized by CHN analysis, IR, 1H and 13C NMR. The acrylates were copolymerized with styrene in solution with radical initiation (ABCN) at 70C. The compositions of the copolymers were calculated from nitrogen analysis and the structures were analyzed by FTIR, 1H and 13C NMR.

Keywords

phenylcyanoacrylate
Knoevenagel Condensation
styrene copolymerization

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