Synthesis and mesomorphic properties of cyano derivatives of 2-(4-carbohydroxy-3-halogenphenyl)-5-alkyl-1,3,2-dioxaborinanes

doi:10.1080/02678299108036455

Paper

Synthesis and mesomorphic properties of cyano derivatives of 2-(4-carbohydroxy-3-halogenphenyl)-5-alkyl-1,3,2-dioxaborinanes

Published Dec 1, 1991 · V. Bezborodov, V. Lapanik

Liquid Crystals

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13

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0

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Abstract

Abstract Cyano derivatives of 2-(4-carbohydroxy-3-halogenphenyl)-5-alkyl-1,3,2-dioxaborinane have been synthesized. These compounds are characterized by low nematic-isotropic transition temperatures and a high positive dielectric anisotropy; they are promising for use in liquid-crystalline mixtures intended for high information electrooptic display devices.

Study Snapshot

Cyano derivatives of 2-(4-carbohydroxy-3-halogenphenyl)-5-alkyl-1,3,2-dioxaborinane show promising properties for high information electrooptic display devices due to low nematic-isotropic transition temperatures and high positive dielectric ani

PopulationOlder adults (50-71 years)

Sample size24

MethodsObservational

OutcomesBody Mass Index projections

ResultsSocial networks mitigate obesity in older groups.

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Paper

Synthesis and mesomorphic properties of cyano derivatives of 2-(4-carbohydroxy-3-halogenphenyl)-5-alkyl-1,3,2-dioxaborinanes

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References

A new series of liquid crystalline materials containing boron atoms

Dioxaborinane derivatives synthesized using a new Pd-catalysed coupling reaction form mesomorphic phases in a wide temperature range, offering a new series of liquid crystalline compounds with boron atoms in the principal structure.

Citations

Liquid-Crystalline Oxygen-Containing Heterocyclic Derivatives. 2 Six-Membered Rings Containing Oxygen as Structural Fragments in Liquid Crystals

Introducing oxygen atoms into the molecular structure of liquid crystals significantly alters their physico-chemical properties compared to hydrocarbon and other derivatives.

Synthesis and physical properties of laterally fluorinated liquid crystals containing 1,3,2-dioxaborinane and cyclohexyl units

Laterally fluorinated liquid crystals containing 1,3,2-dioxaborinane and cyclohexyl units show thermotropic properties and diverse mesomorphic properties, with some showing negative anisotropy.

The liquid‐crystalline derivatives of 3,6‐disubstituted cyclohex‐2‐enones

This study presents a new synthetic approach for the preparation of various mesomorphic chiral and non-chiral liquid-crystalline compounds of cyclohexene, cyclohexane, phenylcyclohexane, or biphenyl with different combinations of cyclic

Fluoro Substitution in Thermotropic Liquid Crystals

Fluoro substitution in thermotropic liquid crystals can modify properties like melting point, transition temperatures, and mesophase types, improving the behavior of the parent compound in a predictable manner.

Difluorobiphenyl Dioxaborinanes for Ferroelectric Liquid Crystal Applications

Difluorobiphenyl dioxaborinanes show potential for ferroelectric liquid crystal applications due to their low transition temperatures and nematic properties.

Synthesis and properties of some laterally substituted liquid crystals

Laterally substituted liquid crystals show improved synthesis and physico-chemical properties compared to their unsubstituted analogues.

Liquid crystalline oxygen containing heterocyclic derivatives

This paper reviews the molecular design of oxygen containing heterocyclic liquid crystals for nematic liquid crystal display applications, examining correlations between molecular structure and physico-chemical and electro-optical properties.