Birch-Type Photoreduction of Arenes and Heteroarenes by Sensitized Electron Transfer was written by Chatterjee, Anamitra;Koenig, Burkhard. And the article was included in Angewandte Chemie, International Edition in 2019.Formula: C8H4Br2S This article mentions the following:
In the presence of Ir[dF(CF3)ppy]2(dtbbpy)(PF6), arenes such as anthracene underwent photochem. Birch reduction mediated by DIPEA and methylamine hydrochloride in DMF under 455 nm light to yield reduced arenes such as 9,10-dihydroanthracene using the accumulated energy of two photons per reduction Mechanistic investigations confirm that the combination of energy-transfer and electron-transfer processes generates an arene radical anion, which is subsequently trapped by hydrogen-atom transfer and finally protonated to form the dearomatized product. In the experiment, the researchers used many compounds, for example, 2,3-Dibromobenzo[b]thiophene (cas: 6287-82-7Formula: C8H4Br2S).
2,3-Dibromobenzo[b]thiophene (cas: 6287-82-7) belongs to benzothiophene derivatives. Benzothiophenes are valuable heterocycles that are widely used in medicines, agrochemicals, and materials science. The different substitution patterns in these heterocycles offer new opportunities for drug discovery and other applications in materials science.Formula: C8H4Br2S
Referemce:
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem