In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called The effect of terminal alkoxy chain on mesophase behaviour, optical property and structure of chiral liquid crystal compounds derived from (-)-menthol, published in 2017, which mentions a compound: 77341-67-4, Name is 4-(((1R,2S,5R)-2-Isopropyl-5-methylcyclohexyl)oxy)-4-oxobutanoic acid, Molecular C14H24O4, Reference of 4-(((1R,2S,5R)-2-Isopropyl-5-methylcyclohexyl)oxy)-4-oxobutanoic acid.
Herein, the results of the extensive investigations on the synthesis and phase behavior of nine novel (-)-menthol-based chiral liquid crystal compounds is reported. They possess three Ph rings and substituted with (-)-menthyl and varying length of n-alkoxy chains at one end. With the aim of exploring the fundamental relationships between mol. structural features and thermal properties, nine terminal n-alkoxy groups from ethoxy to n-octadecaneloxy group in even numbers have been used. A detailed characterization of their properties was carried out. The characterization results clearly illustrate that all the series compounds show the thermodynamically stable phases; the shorter chain homologues display only the BPI and N* phases, and the middle ones exhibit BPI, N* and SA* phases while the longer chain members show the BPI, N* and SC* phases. Besides, the BPI appeared in a narrow temperature range because of their thermodn. disruption. Temperature range of the N* phase narrows when the length of the n-alkoxy tail increases. The reflection peak is shifted towards short wavelength region with increasing temperature due to the winding of the chiral nematic helix in the N* phase. Furthermore, their inherent reflection peak intensities of reflections were gradually weakened.
As far as I know, this compound(77341-67-4)Reference of 4-(((1R,2S,5R)-2-Isopropyl-5-methylcyclohexyl)oxy)-4-oxobutanoic acid can be applied in many ways, which is helpful for the development of experiments. Therefore many people are doing relevant researches.
Reference:
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem