FIELD: chemistry.
SUBSTANCE: invention relates to improved method of obtaining aminoacrylates (dimethylaminoethylacrylate and dimethylaminoethylmethacrylate) by transesterification of methylacrylate or methylmethacrylate by dimethylethanolamine at increased temperature in presence of Ti-containing liquid-phase catalyst. Synthesis is realised in two successive reactors: first, which works without methanol distillation, to conversion of DMAE 30-40% and second, from which distillation of methanol is carried out continuously to complete conversion of initial DMAE, with recycle of unreacted acrylate into first reactor and recycle of DMAE into second reactor.
EFFECT: method makes it possible to simplify reactor unit, increase specific productivity with preservation of high selectivity of process.
1 dwg, 2 tbl
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