Heckershoff, Robin published the artcileEfficient Synthesis of Dipyrrolobenzenes and Dipyrrolopyrazines via Bidirectional Gold Catalysis: a Combined Synthetic and Photophysical Study, Category: bromides-buliding-blocks, the publication is Journal of the American Chemical Society (2022), 144(18), 8306-8316, database is CAplus and MEDLINE.
A straightforward synthesis to access meta/para-dipyrrolobenzenes I [R = R1 = Ph, 2-naphthyl, 4-MeOC6H4, etc.; R3 = R4 = H, n-octyl], II [R5 = R6 = H, Ph, 2-H2NC6H4, 2-BrC6H4] and para-dipyrrolopyrazines III [R7 = R8 = TIPS, Ph] in high yields using a bidirectional gold-catalyzed cyclization strategy. The versatility of reaction protocol was showcased by preparing dipyrroloarenes with different substituents, various functional groups, and in a multitude of substitution patterns. Furthermore, the dipyrroloarenes could be post-modified by N-alkylation to improve the solubility or bromination to yield precursors for further derivatization via cross-coupling. Investigation of the photophys. properties of the-mostly unprecedented-dipyrroloarenes I, II, III and dialkyne precursors were identified strong blue emitters such as the di-Ph meta-dipyrrolobenzene with a quantum yield of 98%. Moreover, changes in the solvent polarity or interactions with Lewis acids such as borane could be used to fine-tune the photophys. properties of the fluorophores.
Journal of the American Chemical Society published new progress about 111-83-1. 111-83-1 belongs to bromides-buliding-blocks, auxiliary class Bromide,Aliphatic hydrocarbon chain, name is 1-Bromooctane, and the molecular formula is C8H17Br, Category: bromides-buliding-blocks.
Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary