Preparation of Orthogonal 锜?Conjugated Aryl Alkynes and Cyclophanes was written by Crisp, G. T.;Turner, P. D.. And the article was included in Tetrahedron in 2000.Application of 313648-56-5 This article mentions the following:
A series of anthracene based orthogonal 锜?conjugated aryl alkynes was prepared using palladium-catalyzed couplings. Thia- and azacyclophanes were prepared from anthracene based orthogonal 锜?conjugated aryl alkynes. 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 also usually derived from carboxylic acids. It may also be obtained by reaction of acid anhydride or acid halides with alcohols or by the reaction of salts of carboxylic acids with alkyl halides. 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