An effective synthesis of polynuclear tetraamines, monomers for polyheteroarylenes
| Autor: | A. A. Bashkirova, Nataliya M. Belomoina, A. N. Valyaeva, E. G. Bulycheva, R. S. Begunov |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
chemistry.chemical_classification
Trifluoromethyl Supercritical carbon dioxide chemistry.chemical_element 02 engineering and technology General Chemistry Polymer 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Oxygen 0104 chemical sciences chemistry.chemical_compound Monomer chemistry Polymer chemistry Nucleophilic substitution Chlorine Solubility 0210 nano-technology |
| Zdroj: | Russian Chemical Bulletin. 67:1072-1077 |
| ISSN: | 1573-9171 1066-5285 |
| DOI: | 10.1007/s11172-018-2182-8 |
| Popis: | An effective synthesis of polynuclear tetraamines via nucleophilic substitution of chlorine in 2-chloro-5-nitroaniline under ultrasonic irradiation followed by catalytic hydrogenation of dinitrodiaminoarenes in a flow reactor was proposed. A number of monomers, including those not described in the literature, were thus obtained. Two classes of polyheteroarylenes, namely, polynaphthoylenebenzimidazoles and polyphenylquinoxalines were synthesized by the polycyclocondensation in a supercritical carbon dioxide. Incorporation of trifluoromethyl substituents and flexible oxygen bridges into the structure of monomers allowed one to improve the solubility of the polymers. Some properties of synthesized polyheteroarylenes were investigated. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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