Synthesis, mesomorphic and dielectric properties of 4-(cyanomethoxy)phenyl 4-alkoxybenzoates, 4-(cyanomethoxy)-4′-alkoxyazo- and -azoxybenzenes
作者:S. A. Kuvshinova、V. A. Burmistrov、I. V. Novikov、K. M. Litov、V. V. Aleksandriiskii、O. I. Koifman
DOI:10.1134/s1070428014050017
日期:2014.5
Preparation methods were developed for homologs of 4-(cyanomethoxy)phenyl 4-alkoxybenzoates (C-7, C-8, C-9), 4-(cyanomethoxy)-4'-alkoxyazo (C-2, C-3, C-6), -azoxybenzenes (C-3, C-6) whose composition and structure were proved by elemental analysis and H-1 NMR spectra. 4-(Cyanomethoxy) group destabilizes the mesophase, consequently, only four among the compounds obtained exhibit the thermotropic nematic mesomorphism.