These common heterocyclic compound, 496-12-8, name is Isoindoline, its 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. Computed Properties of C8H9N
Intermediate 5A 2-(4-bromo-3-fluorophenyl)-1-(isoindolin-2-yl)ethanone [0492] [0493] To a mixture of 2-(4-bromo-3-fluorophenyl)acetic acid (300 mg, 1.287 mmol), isoindoline (0.161 mL, 1.416 mmol), and HATU (734 mg, 1.931 mmol) in DMF (5 mL), was add DIEA (0.450 mL, 2.6 mmol). The mixture was stirred rt for 18 h. The reaction mixture was diluted with EtOAc, then was washed with H2O, 1N HCl, H2O, sat. Na2CO3 and brine. The organic phase was dried (Na2SO4), filtered through a 1? pad of SiO2 and concentrated. The crude product was purified by flash chromatography (gradient from 0 to 100% ethyl acetate/hexanes) to afford 379 mg (88%) of Intermediate 5A as an off-white solid. MS (ESI) m/z: 333.9 (M+H)+; 1H NMR (400 MHz, CDCl3) delta 7.50 (dd, J=8.0, 7.4 Hz, 1H), 7.33-7.22 (m, 4H), 7.14 (dd, J=9.2, 2.0 Hz, 1H), 7.01 (dd, J=8.5, 1.9 Hz, 1H), 4.83 (s, 4H), 3.72 (s, 2H)
The synthetic route of Isoindoline has been constantly updated, and we look forward to future research findings.
Reference:
Patent; Glunz, Peter W.; Zou, Yan; Quan, Mimi L.; US2014/206686; (2014); A1;,
Indoline – Wikipedia,
Indoline | C8H9N – PubChem