In 2022,Grajewski, Jakub; Zgorzelak, Mikolaj; Janiak, Agnieszka; Taras-Goslinska, Katarzyna published an article in ChemPlusChem. The title of the article was 《Controlled, Sunlight-Driven Reversible Cycloaddition of Multiple Singlet Oxygen Molecules to Anthracene-Containing Trianglimine Macrocycles》.Quality Control of 9,10-Dibromoanthracene The author mentioned the following in the article:
Controlled release of singlet oxygen is of interest not only to chemists, but also to biologists and medics involved in cancer therapy. Two chiral polyaza macrocyclic compounds and their corresponding endoperoxides have been synthesized. These peroxides exhibit high temperature stability, up to 80°C. Detailed studies on their structure, including X-ray anal. as well as NMR, UV-VIS ECD spectroscopy and theor. calculations, combined with photochem. measurements indicate that their high stability is related to the arrangement of oxygen atoms in a conformationally stable macrocyclic ring. Despite the change of carbon hybridization from sp2 to sp3 at the 9 and 10 positions of the anthracene units, the macrocyclic skeleton of the obtained compounds does not change its conformation. The obtained endoperoxides can be formed and release singlet oxygen by irradiation with UV light of 365 and 275 nm, resp. Release of the oxygen does not degrade the macrocyclic structure. The results came from multiple reactions, including the reaction of 9,10-Dibromoanthracene(cas: 523-27-3Quality Control of 9,10-Dibromoanthracene)
9,10-Dibromoanthracene(cas: 523-27-3) is a dibrominated polycyclic aromatic hydrocarbon (PAH). 9,10-Dibromoanthracene is often used as an energy acceptor and activator in reactions that produce chemiluminescence.Quality Control of 9,10-Dibromoanthracene
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary