77341-67-4Relevant articles and documents
Synthesis and Characterization of a Series of Cholesterol-Based Liquid Crystalline Dimers with a Chiral (-)- Menthyl Terminal Group
Wu, Changcheng
, p. 31 - 39 (2015)
A novel series of cholesterol-based liquid crystalline (LC) dimers with a menthyl terminal group in the biphenyl base side have been synthesized. The chemical structures and LC properties of this series of compounds are characterized by FT-IR, 1H-NMR, elemental analysis, hot-stage coupled polarizing microscopy and differential scanning calorimetry. All the dimers exhibit enantiotropic mesophases. These dimesogenic compounds with a short spacer are chiral nematic LCs, while with long spacers, they are SmA and chiral nematic LCs. Some of these LC dimers exhibit iridescent colors in their chial nematic (N) states.
The effect of the position of chiral (?)-menthyl on the formation of blue phase and mesophase behavior in biphenyl-benzoate liquid crystals
Chen, Zhang-Pei,Wang, Xin-Jiao,Meng, Ling-Xin,Wang, Ji-Wei,Jia, Ying-Gang
, (2019/11/26)
Eight new chiral liquid crystal compounds 4-(4-menthyloxy-n-oxoalkanoyloxy) biphenyl-4′-yl 4-butoxybenzoates MnB4OB (n = 1–8), were prepared by modifying the position of chiral (?)-menthyl in the menthol based liquid crystal compounds through gradually increasing the alkyl chain length of the dicarboxylic spacer. All compounds were characterized by FT-IR and NMR spectroscopy in order to prove their chemical structures. Differential scanning calorimetry (DSC), polarized optical microscopy (POM) and X-ray diffraction were carried out to systematically investigate their phase transition behaviors. The position of chiral (?)-menthyl in relation to the core has a great effect on the formation of BPs and mesomorphic behaviors. Only CLCs M1B4OB and M2B4OB with short spacer chains presented blue phases. Furthermore, the length and parity of the flexible spacers have a profound influence on phase structures and phase transition behaviors. An odd-even effect is observed for these chiral liquid crystal compounds.
COOLING SENSATION AGENT COMPOSITION, SENSORY STIMULATION AGENT COMPOSITION AND USE OF THE SAME
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Page/Page column 10, (2011/04/24)
Disclosed is a cooling sensation agent composition or sensory stimulation agent composition which contains at least one of diester compounds of dicarboxylic acid represented by the formula (1) wherein A represents CH2 or CH═CH, n represents an integer of 0 to 4 when A is CH2, or 1 when A is CH═CH, B is an alcohol residue having 10 to 18 carbon atoms and containing a para-menthane skeleton, which may have a substituent, and C is an alcohol residue having 6 to 18 carbon atoms, which may have a substituent as well as a flavor or fragrance composition, a beverage, a food product, a perfume or cosmetic product, a toiletry product, daily utensil products or groceries, a fiber, a fiber product, clothes, clothing or a medicine, wherein the cooling sensation agent composition or the sensory stimulation agent composition is compounded.
