Methyl esters of 3- and 4-(5-hydroxy-5-methyl-1,3-hexadiyne-1-yl)benzoic acid (1, 2) are prepared by the interaction of methyl esters of meta- and para iodobenzoic acids with 2-methylhexadiyne-3,5-ol-2. The crystal structure and structural features of 1 and 2 are determined by XRD. Thermal behavior of these compounds in argon is studied by simultaneous thermal analysis.
Senchurin et al. (Sun,) studied this question.