Synthetic Route of 2058-72-2,Some common heterocyclic compound, 2058-72-2, name is 5-Bromo-1-methylindoline-2,3-dione, molecular formula is C9H6BrNO2, traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route.
General procedure: To a mixture of isatin (1 equiv.) and phenyl acetylene (1.2 equiv.) in water (3 mL), CuWO4 (10 mol%) and DABCO (40 mol%) were added at room temperature and the mixture was heated at 60 C for 2 to 5 h. After completion of reaction (monitoring by TLC) mixture was cooled to room temperature and extracted with EtOAc (2×10 mL). The organic layers were washed with brine, dried using sodium sulfate. Evaporation of the solvent gave the crude product which was purified by silica gel column chromatography to give 3-hydroxy-3-(phenylethynyl)indolin-2-ones (3a-3u).
These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 5-Bromo-1-methylindoline-2,3-dione, its application will become more common.
Reference:
Article; Paplal, Banoth; Sathish, Kota; Nagaraju, Sakkani; Kashinath, Dhurke; Catalysis Communications; vol. 135; (2020);,
Indoline – Wikipedia,
Indoline | C8H9N – PubChem