74800-71-8Relevant academic research and scientific papers
Dioxane derivatives
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, (2008/06/13)
Dioxane derivatives for use as components in liquid crystal devices (LCDs) of general formula (A), wherein X is CH or B; R1, R2 are each A1, OA1, OCOA2, or COOA2 ; A1 is a straight or branched chain alkyl group containing from 1 to 20 carbon atoms and may be substituted with one or more F or CN. A2 is a straight or branched chain alkyl group containing from 1 to 20 carbon atoms and may be substituted with one or more F or CN and if straight may be unsubstituted. Y1, Y2, Y3 may each be (CH2)p, (CH2)p COO or OCO(CH2)p ; p is from 0 to 10, n is 0 or 1, m is 0 or 1, either or both of Z1 and Z2 are F and, when not F, are H; Y4 is a covalent bond or, when n is 0, may be (a) LCDs, containing the devices exhibit very fast switching speed, bi-stable characteristics, enhanced greyscale and storage capabilities and a wide viewing angle.
Liquid-crystalline Heterocycloalkanes. I. Synthesis and Properties of Substituted 1,3-Dioxanes
Vorbrodt, H.-M.,Deresch, S.,Kresse, H.,Wiegeleben, A.,Demus, D.,Zaschke, H.
, p. 902 - 913 (2007/10/02)
The synthesis of 2,5-disubstituted 1,3-dioxanes is described, their melting and clearing points and their physical properties (dielectric anisotropy, viscosity, transition enthalpies, optical birefringence) are investigated.The cyano substituted 1,3-dioxanes 5 and 7 are valuable materials for application in displays.
