Conclusions
The reaction of phthalonitrile condensation with m-phenylenediamine is thermodynamically allowed at temperatures from 250° to 500°K, and its equilibrium is almost completely shifted toward the formation of the macroheterocycle.
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 4, pp. 779–787, April, 1984.
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Rabinovich, I.B., Karyakin, N.V., Dzharimova, É.S. et al. Thermodynamics of condensation of phthalonitrile with m-phenylenediamine. Russ Chem Bull 33, 716–723 (1984). https://doi.org/10.1007/BF00947820
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DOI: https://doi.org/10.1007/BF00947820