Copper-Catalyzed Formal Dehydration Polymerization of Propargylic Alcohols via Cumulene Intermediates was written by Wu, Bin;Su, Hao-Ze;Wang, Zi-Yuan;Yu, Zi-Di;Sun, Han-Li;Yang, Fan;Dou, Jin-Hu;Zhu, Rong. And the article was included in Journal of the American Chemical Society in 2022.HPLC of Formula: 128-08-5 This article mentions the following:
Here we report a copper-catalyzed formal dehydration polymerization of propargylic alcs. Copper catalysis allows for efficient in situ generation of [n]cumulenes (n = 3, 5) by a soft deprotonation/β-elimination pathway and subsequent polymerization via organocopper species. Alkyne polymers (Mn up to 36.2 kg/mol) were produced with high efficiency (up to 95% yield) and excellent functional group tolerance. One-pot synthesis of semiconducting head-to-head poly(phenylacetylene) was demonstrated through a polymerization-isomerization sequence. In the experiment, the researchers used many compounds, for example, 1-Bromopyrrolidine-2,5-dione (cas: 128-08-5HPLC of Formula: 128-08-5).
1-Bromopyrrolidine-2,5-dione (cas: 128-08-5) belongs to organobromine compounds. Organo bromine compounds are versatile compounds and are widely used in diverse fields. Organo bromine derivatives are used in the dye sector, as an indicator in analytical chemistry (Bromothymol blue is a popular indicator). One prominent application of synthetic organobromine compounds is the use of polybrominated diphenyl ethers as fire-retardants, and in fact fire-retardant manufacture is currently the major industrial use of the element bromine.HPLC of Formula: 128-08-5
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary