112231-66-0Relevant articles and documents
A process for preparing S - (+) - 4 - (2 - methyl butyl) biphenol method
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Paragraph 0040; 0041, (2017/08/26)
The invention discloses a method of preparing S-(+)-4-(2-methylbutyl) xenol. The method comprises the following steps of firstly preparing S-(+)-4-(2-methylbutyl) acetylbiphenyl by taking S-(+)-4-(2-methylbutyl) diphenyl, acetylchloride and aluminum chloride as raw materials; reacting the obtained S-(+)-4-(2-methylbutyl) acetylbiphenyl with potassium persulfate serving as an oxidant to obtain the S-(+)-4-(2-methylbutyl) xenol; according to the method, the S-(+)-4-(2-methylbutyl) xenol is prepared through two-step reaction, and the method is simple in technological process and is suitable for batch production; the xenol prepared by the method is used for synthesizing a liquid crystal material for a TFT (Thin Film Transistor) display, and has a broad application prospect; the xenol serving as an inducing agent is used for a mixed liquid crystal formula, and further a product with high stability and low phase-transition temperature is obtained.
[...] compd. mesogene medium
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Paragraph 0221; 0222, (2016/11/14)
The invention relates to bimesogenic compounds of formula I wherein R11, R12, MG11, MG12, X11, X12 and Sp1 have the meaning given in claim 1, to the use of bimesogenic compounds of formula I in liquid crystal media and particular to flexoelectric liquid crystal devices comprising a liquid crystal medium according to the present invention. Furthermore the invention relates to bimesogenic compounds of formula I inducing a second nematic phase in nematic mixtures that do not show this additional phase without compounds of formula I.
Photochromic glassy liquid crystals comprising mesogenic pendants to dithienylethene cores
Kim, Chunki,Marshall, Kenneth L.,Wallace, Jason U.,Chen, Shaw H.
supporting information; experimental part, p. 5592 - 5598 (2010/03/03)
Photochromic glassy liquid crystals were synthesized using dithienylethenes as the volume-excluding cores to which liquid crystalline mesogens were chemically bonded through alkyl spacers. Nematic, smectic, and cholesteric glassy liquid crystals were demonstrated with glass transition temperatures above 90 °C and clearing points up to 220 °C without traces of crystallization on cooling or crystalline melting on heating. A monodomain cholesteric glassy liquid crystalline film containing an enantiomeric 2-methylpropylene chiral spacer was characterized as a left-handed helical stack, exhibiting a selective reflection band centered at 686 nm, an orientational order parameter of 0.65 for the quasi-nematic layers, and a combination of reflective coloration with photoswitchable absorptive coloration.