Thermophysical properties of sulfur heterocycles: Thiane and thiophene derivatives was written by Temprado, Manuel;Roux, Maria Victoria;Jimenez, Pilar;Guzman-Mejia, Ramon;Juaristi, Eusebio. And the article was included in Thermochimica Acta in 2006.Category: esters-buliding-blocks This article mentions the following:
The present study reports a DSC study of the sulfur heterocyclic compounds: 2,2′-bithiophene [492-97-7]; 2,5-thiophenedicarboxylic acid [4282-31-9]; 3-acetylthiophene [1468-83-3]; 2-thiopheneacetic acid [1918-77-0]; 3-thiopheneacetic acid [6964-21-2]; 1,4-dithiane sulfone [139408-38-1]; 1,3-oxathiane-3,3-dioxide (1,3-oxathiane sulfone) [109577-03-9], and 1,4-oxathiane-4,4-dioxide (1,4-oxathiane sulfone) [107-61-9] in the temperature interval T = 268 K and the melting temperatures Temperatures, enthalpies, and entropies of fusion are reported. 1,4-Oxathiane sulfone presents solid-solid phase transitions near fusion. No addnl. solid-solid phase transitions were observed for the other solid compounds For the compounds that are solids over the temperature interval, the heat capacity of the condensed phase was measured. Heat capacities at T = 298.15 K for the liquids 2-acetylthiophene [88-15-3]; Me, 2-thiopheneacetate [19432-68-9]; Me, 3-thiopheneacetate [58414-52-1], and thiazole [288-47-1] were also measured. The Cp,m (298.15 K) values obtained in this work were compared with the available exptl. data and with values estimated with group contribution schemes. In the experiment, the researchers used many compounds, for example, Methyl 2-thienylacetate (cas: 19432-68-9Category: esters-buliding-blocks).
Methyl 2-thienylacetate (cas: 19432-68-9) belongs to esters. Carboxylic acid esters of low molecular weight are colourless, volatile liquids with pleasant odours, slightly soluble in water. Cyclic esters are called lactones, regardless of whether they are derived from an organic or inorganic acid. One example of an organic lactone is 绾?valerolactone.Category: esters-buliding-blocks
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics