RETROSPECTIVE OF DEVELOPMENT OF LIQUID CRYSTAL AND ANISOTROPIC MATERIALS CHEMISTRY IN BELARUS

UDC 544.25

  • Bezborodov Vladimir Stepanovich – DSc (Chemistry), Professor of the Department of Organic Chemistry. Belarusian State Technological University (13a, Sverdlova str., 220006, Minsk, Republic of Belarus). E-mail: v_bezborodov@yahoo.com

DOI: https://doi.org/10.52065/2520-2669-2021-241-1-186-196

Keywords: liquid crystals; anisotropic compounds, intermediates for liquid crystals and anisotropic compounds.

For citation: Bezborodov V. S. Retrospective of development of liquid crystal and anisotropic materials chemistry in Belarus. Proceedings of BSTU, issue 2, Chemical Engineering, Biotechnologies, Geoecology, 2021, no. 1 (241), pp. 186–196 (In Russian). DOI: https://doi.org/10.52065/2520-2669-2021-241-1-186-196.

Abstract

A retrospective of the development of liquid-crystalline and anisotropic materials chemistry in Belarus is discussed and considered using examples of synthetic approaches developed in recent decades. It was shown that anisotropic and liquid-crystalline compounds can be obtained using various transformations of the corresponding 3,6-disubstituted cyclohex-2-enones, trans-2,5-disubstituted cyclohexanones, 5-substituted cyclohexane-1,3-diones, 3,5-disubstituted 2-isoxazolines, 1,2-disubstituted cyclopropanols and unsaturated epoxy ketones.

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References

  1. Bezborodov V. S., Dabrowski R. Present and future of the liquid crystal chemistry. Cryst. Liq. Cryst. Sci. and Techn., 1997, vol. 299 (1), pp. 1–17.
  2. Bezborodov V. S., Mikhalyonok S. G., Kuz’menok N. M., Lapanik V. I., Sasnouski G. M. Polyfunctional intermediates for the preparation of liquidcrystalline and anisotropic materials. Cryst., 2015, vol. 42 (8), pp. 1124–1138.
  3. Bezborodov V. S., Lapanik V. I. Synthesis and mesomorphic properties of cyanoderivatives of 2-(4-carbohydroxy-3-halogenphenyl)-5-alkyl-1,3,2-dioxaborinanes. Cryst., 1991, vol.10, pp. 803–807.
  4. Sasnouski G., Bezborodov V., Dąbrowski R., Dziaduszek J. 3,6-Disubstituted cyclohexenones in the synthesis of new three ring liquid crystalline compounds with the negative dielectric anisotropy. Cryst. Liq. Cryst., 2011, vol. 542 (1), pp. 56–61.
  5. Novello F. C., Christy M. E., Sprague J. M. Synthesis of substituted cyclohexenones. Am. Chem. Soc., 1953, vol. 75 (6), pp. 1330–1334.
  6. Lauk U. H., Skrabal P., Zollinger H. Synthese und flussigkristalline eigenschaften 2,6-disubtituierter naphthaline. Chim. Acta, 1985, vol. 68 (5), pp. 1406–1426.
  7. Sucrow W., Wolter H. Aliphatische flüssigkristalle, 3. Flussig-kristalline 2-cyclohexyldecaline. Ber., 1985, vol. 118 (2), pp. 3350–3356.
  8. Sucrow W., Wolter H. Einige mesogene Tercyclohexylderivate. Ber., 1986, vol. 119 (2), pp. 387–400.
  9. Bezborodov V. S., Dabrowski R., Dziaduszek J. 3,6-Disubstitutedcyclohex-2-en-1-ones as intermediates for synthesis of liquid crystals with lateral substituted cyclohexane or benzene rings. Proceedings SPIE, 1994, vol. 2372, pp. 242–251.
  10. Bezborodov V., Dabrowski R., Sasnouski G., Dziaduszek J., Kohns P., Schirmer J. A convenient method of synthesis of mesomorphic 2,5-disubstituted cyclohexan-1-ones by a catalytic reduction of 3,6-disubstituted cyclohex-2-en-1-ones. Cryst., 1996, vol. 21 (2), pp. 237–241.
  11. Rubinov D. D., Rubiniva I. L., Akhrem A. A. Chemistry of 2-acylcycloalkane-1,3-diones. Rev., 1999, vol. 99, pp.1047–1065.
  12. Koroleva E. V., Lakhvich F. A. Unusual transformations of 2-isoxazolines. Chem. Rev., 1997, vol. 66, pp. 27–42.
  13. Kulinkovich O. G. The chemistry of cyclopropanols. Rev., 2003, vol. 103, pp. 2597–2632.
  14. Kuz’menok, N. M., Koval’chuk T. A., Zvonok A. M. Synthesis of 5-hydroxy- and 5-amino-1-tosyl-5-phenyl-3-(2-arylvinyl)-4,5-dihydropyrazoles. , 2005, no. 7, pp. 485–486.
  15. Mikhalenok S. G., Kuz’menok N. M., Zvonok A. M. Redox transformation of adducts from cycloaddition of diazoacetic ester to β-arylacryloyloxiranes. Heter. Comp., 2005, vol. 41, pp. 977–986.
  16. Bezborodov V., Dąbrowski R., Dziaduszek J., Czupryński K., Raszewski Z. Synthesis and physical properties of liquid crystals having a chlorine atom in the lateral position of a benzene ring. Cryst., 2006, vol. 33, pp. 1490–1496.
  17. Bezborodov V. S., Petrov V. F. Liquid crystalline 1,4-disubstituted cyclo-hexenylene derivatives. Cryst., 1999, vol. 26, pp. 271–280.
  18. Bezborodov V. S., Lapanik V. I., Sasnouski G. M. LC diketones: synthesis, transformationas and mesomorphic properties. Liq Cryst., 2000, vol. 27, pp. 935–941.
  19. Koval’chuk T. A., Kuz’menok M., Zvonok A. M. Reaction of 3-aryl-1-(2-methyloxiran-2-yl)prop-2-en-1-ones with tosylhydrazine. Chem. Heter. Comp., 2005, vol. 41, pp. 1237–1244.
  20. Zvonok A. M., Kuz’menok N. M. Reaction of β-arylacryloxiranes with amidines. Heter. Comp., 1990, vol. 26, pp. 552–556.
  21. Bezborodov V. S. Khimiya zhidkokristallicheskikh materialov [Chemistry of liquidcrystalline materials]. Minsk, BGTU Publ., 277 p.
10.11.2020