The gelling ability of these compounds is determined by dissolving them in different polar solvents under mild heating conditions. After cooling to room temperature, turn the test bottle upside down. If no liquid flows down, it is considered that gel has formed (as shown in figure 1). Interestingly, it was found that only compound 3 appeared gel in selected solvents, such as decane, hexadecane and 1, 1, 1- trichloroethane. In the same solvent, compounds 1 and 2 precipitate or at most partially gel. The highest critical gel concentration appeared in trichloroethane (10 mmol), while the critical gel concentrations in decane and hexadecane were very low, only 1.3 mmol and 1.0 mmol respectively. The results showed that the solubility of compound 3 in trichloroethane was higher than that in decane and hexadecane. At the same time, although the solubility of the whole molecule in decane and hexadecane is relatively low, the local interaction between hexadecyloxy side chain groups and linear hydrocarbons may be more effective than trichloroethane because of the structural similarity. The gel temperature (Tgel) of compound 3 measured by inverted bottle test method is 44 degrees Celsius in trichloroethane, 77 degrees Celsius in decane and 1 16 degrees Celsius in hexadecane, respectively. The low temperature of trimethylethane gel is partly due to its low boiling point. Decane and hexadecane gels can remain stable for more than one month under natural conditions. However, due to the volatility of trichloroethane solvent, it is difficult to find a suitable method to measure its gel stability.