Light-controllable chiral dopant based on azo-fragment: synthesis and characterisation was written by Chornous, V.;Vovk, M.;Bratenko, M.;Dmytriv, Yu.;Rudnichenko, A.;Skorobahatko, M.;Kasian, N.;Lisetski, L.;Gvozdovskyy, I.. And the article was included in Liquid Crystals in 2022.HPLC of Formula: 2216-51-5 This article mentions the following:
The synthesis of chiral dopant 2-[(2-isopropyl-5-methylcyclohexyl)oxy]-2-oxoethyl 4-{(E)-[4-(decyloxy)phenyl]diazenyl}benzoate (ChD-3501), consisting of azo- and aliphatic fragments together with a chiral center based on L-menthol as a reversible light-controllable chiral dopant was presented. To assess the effects of UV-vis irradiation and temperature in the isotropic and liquid crystalline (LC) states, the spectral kinetics of ethanol solution of ChD-3501, as well as induction of the cholesteric helix when it was dissolved in nematic LC (E7) as a chiral dopant was studied. The concentration dependence of the helical pitch of the induced cholesterics was studied by means on Grandjean-Cano method, and the helical twisting power of ChD-3501 in the nematic host E7 was determined The reversible trans-cis isomerisation of chiral dopant ChD-3501 in E7 under UV-vis irradiation was studied, and it was found that the storage of the cis-isomer at certain constant temperature also leads to the reversible isomerisation. Possible applications of the studied system were discussed. In the experiment, the researchers used many compounds, for example, (1R,2S,5R)-2-Isopropyl-5-methylcyclohexanol (cas: 2216-51-5HPLC of Formula: 2216-51-5).
(1R,2S,5R)-2-Isopropyl-5-methylcyclohexanol (cas: 2216-51-5) belongs to alcohols. Alkyl halides are often synthesized from alcohols, in effect substituting a halogen atom for the hydroxyl group. Tertiary alcohols cannot be oxidized at all without breaking carbon-carbon bonds, whereas primary alcohols can be oxidized to aldehydes or further oxidized to carboxylic acids.HPLC of Formula: 2216-51-5
Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts