Isophthalamide bearing 1-pyrenylethynyl group as a highly fluorescent hydrogen bond motif for anion receptors was written by Kondo, Shin-ichi;Iioka, Jun. And the article was included in Tetrahedron Letters in 2021.Application of 313648-56-5 This article mentions the following:
Isophthalamide-based receptor 2 bearing 1-pyrenylethynyl group I as a fluorophore was prepared for a ratiometric fluorescence sensor for anions. Receptor I showed small hypsochromic shift by UV-vis titrations and ratiometric fluorescence changes upon the addition of anions, in particular biol. important anions such as AcO–, H2PO–4, and Cl– with high association constants The high quantum yield of receptor 2 (ΦF = 0.88) implies that 5-(1-pyrenyl)isophthaloyl amide spacer is a versatile component for various fluorescence receptors. In the experiment, the researchers used many compounds, for example, Dimethyl 5-ethynylisophthalate (cas: 313648-56-5Application of 313648-56-5).
Dimethyl 5-ethynylisophthalate (cas: 313648-56-5) belongs to esters. Esters are widespread in nature and are widely used in industry. In nature, fats are in general triesters derived from glycerol and fatty acids. Esters are responsible for the aroma of many fruits. Esterification is the general name for a chemical reaction in which two reactants (typically an alcohol and an acid) form an ester as the reaction product. Esters are common in organic chemistry and biological materials.Application of 313648-56-5
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics