SYNTHESIS AND LIQUID CRYSTAL PROPERTIES OF ARYL ESTERS OF LATERALLY SUBSTITUTED 5-PYRIMIDINECARBOXYLIC ACIDS

Abstract

(p-R-phenyl)-4-methyl-, 4-methoxy-, and 4-hydroxy-5-pyrimidinecarboxylates have been synthesized and their liquid crystal properties examined. Compounds containing methyl and methoxy groups in the lateral position of the molecule are nematic liquid crystals with a mesophase range of 30-50°C, but the 4-hydroxy derivatives are smectic liquid crystals. With variants of the substituents in a series of (p-R-phenyl)-4-substituted 5-pyrimidinecarboxylates the mp of individual representatives were successfully reduced by ~50°C in comparison with the 4-unsubstituted analogs and the range of the mesomorphic state was extended to 190°C.

How to Cite
Mikhaleva, M. A. Chem. Heterocycl. Compd. 2003, 39, 1032. [Khim. Geterotsikl. Soedin. 2003, 1184.]

For this article in the English edition, see DOI 10.1023/B:COHC.0000003520.70863.87