Nykaza, Trevor V. published the artcilePIII/PV=O Catalyzed Cascade Synthesis of N-Functionalized Azaheterocycles, Quality Control of 189748-25-2, the publication is Angewandte Chemie, International Edition (2020), 59(11), 4505-4510, database is CAplus and MEDLINE.
An organocatalytic method for the modular synthesis of diverse N-aryl and N-alkyl azaheterocycles (indoles, oxindoles, benzimidazoles, and quinoxalinediones) is reported. The method employs a small-ring organophosphorus-based catalyst (1,2,2,3,4,4-hexamethylphosphetane P-oxide) and a hydrosilane reductant to drive the conversion of ortho-functionalized nitroarenes into azaheterocycles through sequential intermol. reductive C-N cross coupling with boronic acids, followed by intramol. cyclization. This method enables the rapid construction of azaheterocycles from readily available building blocks, including a regiospecific approach to N-substituted benzimidazoles and quinoxalinediones.
Angewandte Chemie, International Edition published new progress about 189748-25-2. 189748-25-2 belongs to bromides-buliding-blocks, auxiliary class Bromide,Nitro Compound,Benzene,Ester, name is Methyl 2-(5-bromo-2-nitrophenyl)acetate, and the molecular formula is C9H8BrNO4, Quality Control of 189748-25-2.
Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary