Chen, X; Ichige, A; Chen, JH; Fukushima, I; Kuwabara, J; Kanbara, T in [Chen, Xi; Ichige, Akito; Chen, Junhui; Kuwabara, Junpei; Kanbara, Takaki] Univ Tsukuba, Tsukuba Res Ctr Energy Mat Sci TREMS, Grad Sch Pure & Appl Sci, 1-1-1 Tennodai, Tsukuba, Ibaraki 3058573, Japan; [Fukushima, Iori] Hitachi Chem Co Ltd, Adv Technol Res & Dev Ctr, 48 Wadai, Tsukuba, Ibaraki 3004247, Japan published Facile access to conjugated polymers under aerobic conditions via Pd-Catalyzed direct arylation and aryl amination polycondensation in 2020, Cited 42. COA of Formula: C12H8Br2. The Name is 4,4′-Dibromobiphenyl. Through research, I have a further understanding and discovery of 92-86-4.
Facile polymerization reaction conditions were developed for synthesizing conjugated polymers via direct arylation and the Buchwald-Hartwig aryl amination reactions under aerobic conditions. Refluxing the reaction solvent and using XPhos Pd G2 as a precatalyst proved to be a tolerant polymerization protocol for direct arylation polycondensation, which eliminates the need for an inert gas atmosphere and can successfully proceed using commercially available, reagent-grade N,N-dimethylformamide (DMF) as the solvent. This strategy was also successfully applied to the Buchwald-Hartwig aryl amination polycondensation in toluene, which provided poly(triarylamine)s in air.
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Reference:
Benzoxazole – Wikipedia,
,Benzoxazole | C7H5NO – PubChem