Kwok, Yan-Yi et al. published their research in Chemistry of Materials in 2022 | CAS: 128-08-5

1-Bromopyrrolidine-2,5-dione (cas: 128-08-5) belongs to organobromine compounds. Bromo compounds are employed in a variety of metal-catalyzed coupling reactions. They are also ideal candidates for the synthesis of Grignard reagents that have wide-applicability in organic synthesis. The reactivity of organobromine compounds resembles but is intermediate between the reactivity of organochlorine and organoiodine compounds. For many applications, organobromides represent a compromise of reactivity and cost.Formula: C4H4BrNO2

Molecular Engineering of Robust Starburst-Based Organic Photosensitizers for Highly Efficient Photocatalytic Hydrogen Generation from Water was written by Kwok, Yan-Yi;Ho, Po-Yu;Wei, Ying;Zheng, Zhong;Yiu, Sze-Chun;Ho, Cheuk-Lam;Huang, Shuping. And the article was included in Chemistry of Materials in 2022.Formula: C4H4BrNO2 This article mentions the following:

Six donor-donor-π-acceptor (D-D-π-A) triphenylamine-based starburst organic dyes with different electron-donating moieties and thiophene-based π-linkers were synthesized and characterized. Their photophys. and electrochem. properties, together with their photocatalytic hydrogen evolution performance as photosensitizers (PSs), were investigated. Distinctive and prolonged hydrogen evolution performances of these PSs under visible-light irradiation from water in their platinized TiO2 composites were demonstrated: a turnover number (TON) of up to 24 900 (252 h) with 1560 μmol (37.6 mL) hydrogen produced, an initial turnover frequency (TOFi) of 1130 h-1, initial activity (Activityi) of 705 mmol g-1 h-1, and initial apparent quantum yield (AQYi) of 12.1%. To the best of our knowledge, according to the TOF and TON values, the designed PS system is one of the most efficient and robust photocatalytic H2 generation systems adopting a TiO2-anchoring mol. PS in the literature. The results showed that the starburst triarylamine donor moiety with phenothiazine functionality and the alkyl chain on the thiophene π-linker could boost the performance and longevity of the photocatalytic system, providing a powerful strategy for the development of starburst-based highly efficient and robust D-D-π-A organic photosensitizers in the future. In the experiment, the researchers used many compounds, for example, 1-Bromopyrrolidine-2,5-dione (cas: 128-08-5Formula: C4H4BrNO2).

1-Bromopyrrolidine-2,5-dione (cas: 128-08-5) belongs to organobromine compounds. Bromo compounds are employed in a variety of metal-catalyzed coupling reactions. They are also ideal candidates for the synthesis of Grignard reagents that have wide-applicability in organic synthesis. The reactivity of organobromine compounds resembles but is intermediate between the reactivity of organochlorine and organoiodine compounds. For many applications, organobromides represent a compromise of reactivity and cost.Formula: C4H4BrNO2

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary