《Azolium Aurates as Pre-Catalysts for the Oxidative Coupling of Terminal Alkynes under Mild Conditions》 was written by Ma, Xinyuan; Tzouras, Nikolaos V.; Peng, Min; Van Hecke, Kristof; Nolan, Steven P.. SDS of cas: 258278-25-0 And the article was included in Journal of Organic Chemistry on April 1 ,2022. The article conveys some information:
A simple and efficient method for the oxidative coupling of terminal alkynes was reported for the first time, using imidazol(in)ium aurates as pre-catalysts. This approach displayed high functional group tolerance and led to a broad range of 1,3-diyne compounds in moderate to excellent yields using low catalyst loading and was performed in air under mild and sustainable conditions. In addition to this study using 1,3-Bis(2,6-diisopropylphenyl)-4,5-dihydro-1H-imidazol-3-ium chloride, there are many other studies that have used 1,3-Bis(2,6-diisopropylphenyl)-4,5-dihydro-1H-imidazol-3-ium chloride(cas: 258278-25-0SDS of cas: 258278-25-0) was used in this study.
1,3-Bis(2,6-diisopropylphenyl)-4,5-dihydro-1H-imidazol-3-ium chloride(cas: 258278-25-0) may be used as a precursor to the free carbene 1,3-bis(2,6-diisopropylphenyl)-2-imidazolidinylidene, and also used as an in situ formed catalyst in a variety of reactions, e.g. amination, Heck coupling reaction, the ring-opening metathesis polymerization (ROMP), hydrogenation.SDS of cas: 258278-25-0In addition, it can efficiently catalyze the Suzuki-Miyaura coupling of aryl chlorides with aryl boronic acids.
Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem