In 2022,King, Andrew J.; Zhukhovitskiy, Aleksandr V. published an article in Angewandte Chemie, International Edition. The title of the article was 《A Chain-Growth Mechanism for Conjugated Polymer Synthesis Facilitated by Dinuclear Complexes with Redox-Active Ligands》.Synthetic Route of C4H2Br2S The author mentioned the following in the article:
Conjugated polymers are widely used in energy conversion and sensor applications, but their synthesis relies on imprecise step-growth or narrow-scope chain-growth methods, typically based on transition metal (TM)-catalyzed cross-coupling. Here we report that a dinickel complex with a redox-active naphthyridine diimine ligand accesses new chain-growth mechanistic manifolds for both donor and acceptor conjugated polymers, represented by poly(3-hexylthiophene), poly(2,3-bis(2-ethylhexyl)thienopyrazine), and poly(2-(2-octyldodecyl)benzotriazole). For the latter, our method is particularly effective: we achieve high ds.p. (DP) (>100) with moderate dispersities (D) of ≈1.4. Mechanistic anal. supports a radical/radical anion chain-growth mechanism with organometallic intermediates instead of TM-catalyzed cross-couplings. Hence, our work develops new mechanisms for conjugated polymer synthesis and furnishes insights about the elementary reactivity of dinuclear complexes.2,5-Dibromothiophene(cas: 3141-27-3Synthetic Route of C4H2Br2S) was used in this study.
2,5-Dibromothiophene(cas: 3141-27-3) , is mainly used as pharmaceutical intermediate and synthesis intermediate. 2,5-Dibromothiophene may be used in the preparation of soluble α,ω-diformyl-a-oligothiophenes.Synthetic Route of C4H2Br2S
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary