In 2022,Liu, Chao; Shi, Lei; Zhang, Jiaxu; Sun, Jianmin published an article in Chemical Engineering Journal (Amsterdam, Netherlands). The title of the article was 《One-pot synthesis of pyridine-based ionic hyper-cross-linked polymers with hierarchical pores for efficient CO2 capture and catalytic conversion》.Reference of 1,4-Bis(bromomethyl)benzene The author mentioned the following in the article:
A kind of pyridine-based ionic hyper-cross-linked polymers (Py-HCP-X, X = Cl, Br) with high surface area, plentiful hierarchical pores and abundant catalytic active units were prepared via a one-pot method. Adsorption measurements showed that the as-prepared Py-HCP-X exhibited high CO2 capture capacity (up to 1.72 mmol g-1, 273 K and 1 bar). Importantly, Py-HCP-Br displayed excellent catalytic activity for the cycloaddition of CO2 to epoxides under metal/cocatalyst/solvent-free conditions. And the propylene carbonate was produced in 97% yield with an excellent selectivity of 99% at 120°C and 2.0 MPa CO2 for 8 h. The high performance of the present catalyst is ascribable to synergistic contributions of plentiful hierarchical pores and abundant nucleophilic bromide ions and pyridine-based active units in the Py-HCP-Br catalyst. Addnl., the catalyst is able to be simply separated by centrifugation and reused for four runs without significant loss in the performance, furthermore, the catalyst exhibits great structural stability and substrate universality. In the experiment, the researchers used 1,4-Bis(bromomethyl)benzene(cas: 623-24-5Reference of 1,4-Bis(bromomethyl)benzene)
1,4-Bis(bromomethyl)benzene(cas: 623-24-5) belongs to organobromine compounds.The reactivity of organobromine compounds resembles but is intermediate between the reactivity of organochlorine and organoiodine compounds. Dehydrobromination, Grignard reactions, reductive coupling, Wittig reaction, and several nucleophilic substitution reactions are some of the principal reactions which involve organic bromides.Reference of 1,4-Bis(bromomethyl)benzene
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary