Abstract
The conditions for the Knoevenagel synthesis of 2-cyanoacrylates containing double and triple bonds in the alkoxycarbonyl group have been studied. It was found that the esters are formed in 10–70 % yields by the condensation of the respective cyanoacetates with formaldehyde in the 1∶1 ratio in the presence of piperidine, followed by the pyrolysis of the oligomers formedin vacuo at 170–200 °C in the presence ofpara-toluenesulfonic acid. The compounds synthesized readily undergo polymerization at room temperature and can be used as the basis for thermostable rapidly polymerizing adhesives.
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Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 4, pp. 646–649, April, 1994.
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Guseva, T.I., Senchenya, N.G., Mager, K.A. et al. Synthesis of functionally substituted 2-cyanoacrylates. Russ Chem Bull 43, 595–598 (1994). https://doi.org/10.1007/BF00699831
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DOI: https://doi.org/10.1007/BF00699831