New (-)-menthol-based blue phase liquid crystals with different polar substituents in the terminal group: synthesis, mesophase behaviors, and DFT calculations was written by Han, Zhi-Yuan;Kun, Shi-Qian;Kang, Jing-Tian;Jia, Ying-Gang. And the article was included in Journal of Molecular Structure in 2022.SDS of cas: 2216-51-5 This article mentions the following:
Eight novel Schiff base ester chiral liquid crystals I (R = 4-XC6H4; X = H, Me, F, NO2, MeO, CN, CF3, CF3O), containing (-)-menthol at one end and a different polar substituent at the other end, were successfully synthesized and analyzed for their mesophase formation and stability. The combination differential scanning calorimeter (DSC), polarizing optical microscopy (POM) and X-ray diffraction (XRD) measurements were carried out to systematically study the mesomorphic properties. The photophys. properties was studied by UV-vis spectroscopy. All the prepared chiral liquid crystals, except for the compound I (R = Ph), are mesomorphic exhibiting N* and/or SA* mesophase. The results revealed that the mesomorphic behavior and the clearing point of mesophase (Tc) correlate well with polarizability anisotropy (Δα). In the experiment, the researchers used many compounds, for example, (1R,2S,5R)-2-Isopropyl-5-methylcyclohexanol (cas: 2216-51-5SDS of cas: 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. The most common reactions of alcohols can be classified as oxidation, dehydration, substitution, esterification, and reactions of alkoxides.SDS of cas: 2216-51-5
Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts