20780-72-7, name is 4-Bromoisatin, belongs to indolines-derivatives compound, is considered to be a conventional heterocyclic compound, which is widely used in drug synthesis. The chemical synthesis route is as follows. name: 4-Bromoisatin
To 4-bromoindoline-2,3-dione (200 mg, 0.89 mmol) in 5 ml DMF was added 4- Fluorobenzylbromide (0.120 ml, 0.98 mmol) then add NaH (35 mg, 0.89 mmol) and stir at room temperature overnight. Work up by adding water and EtOAc and extract three times with EtOAc. Pool all organics and wash one time with brine then dry over sodium sulfate, filter and concentrate to dryness. The residue was purified by chromatography over silica gel (eluted with Hexanes/EtOAc 99:1 to 50:50) to provide 270 mg (90percent) of product.
The synthetic route of 20780-72-7 has been constantly updated, and we look forward to future research findings.
Reference:
Patent; SCHERING CORPORATION; WO2009/73777; (2009); A1;,
Indoline – Wikipedia,
Indoline | C8H9N – PubChem