Synthesis and styrene copolymerization of novel fluoro and chloro ring-disubstituted isobutyl phenylcyanoacrylates

06 October 2020, Version 9

Abstract

Novel ring-disubstituted isobutyl phenylcyanoacrylates, RPhCH=C(CN)CO2CH2CH(CH3)2 (where R is 2,3-difluoro, 2,4-difluoro, 2,6-difluoro, 3,4-difluoro, 3,5-difluoro, 2-chloro-4-fluoro, 2-chloro-6-fluoro, 3-chloro-2-fluoro, 3-chloro-4-fluoro, 4-chloro-3-fluoro) 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 70C. The compositions of the copolymers were calculated from nitrogen analysis.

Keywords

phenyl cyanoacrylates
radical copolymerization
styrene copolymers
Knoevenagel condensation products

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