Sui, Jingzhi published the artcileSynthesis of Trans-4a,12b/3,4-Dihydrodibenzo[f,h]quinolin-2(1H)-Ones and Dibenzo[f,h]quinolin-2(1H)-Ones via Irradiation of 6-Biphenylpyridine-2(1H)-Ones, Product Details of C7H8BBrO3, the publication is Advanced Synthesis & Catalysis (2021), 363(14), 3554-3559, database is CAplus.
The synthesis of trans-4a,12b-dihydrodibenzo[f,h]quinolin-2(1H)-ones, dibenzo[f,h]quinolin-2(1H)-ones and 3,4-dihydrodibenzo[f,h]quinolin-2(1H)-ones via photo-induced annulation of 6-([1,1′-biphenyl]-2-yl)pyridine-2(1H)-ones under irradiation of a 313 nm UV light was described. Trans-4a,12b-dihydrodibenzo[f,h]quinolin-2(1H)-ones were obtained in 82-95% yields when the irradiation time was 3 h. Dibenzo[f,h]quinolin-2(1H)-ones were obtained by irradiating biphenylpyridinones for 12 h in the presence of iodine. Heating the solution of trans-4a,12b-dihydrodibenzo[f,h]quinolin-2(1H)-ones in DMF at 130°C for 24 h gave 3,4-dihydrodibenzo[f,h]quinolin-2(1H)-ones via a double 1,3-H shift. The demonstrated protocols showed the diversity of photo-induced cyclization of biphenylpyridinones.
Advanced Synthesis & Catalysis published new progress about 89694-44-0. 89694-44-0 belongs to bromides-buliding-blocks, auxiliary class Bromide,Boronic acid and ester,Benzene,Ether,Boronic Acids,Boronic acid and ester, name is 2-Bromo-5-methoxybenzene boronic acid, and the molecular formula is CBF6K, Product Details of C7H8BBrO3.
Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary