Some common heterocyclic compound, 337536-15-9, name is 4-Bromoisoindolin-1-one, molecular formula is C8H6BrNO, 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. Recommanded Product: 337536-15-9
Carbon monoxide (g, 10 atm) was introduced into a 250-mL pressure tank reactor charged with a solution of 4-bromoisoindolin-l-one (3.0 g, 14.2 mmol), sodium acetate (2.32 g, 28.3 mmol), and Pd(dppf)Cl2 (517 mg, 0.71 mmol) in methanol (150 mL). The resulting solution stirred for 24 h at 100 C and was then cooled to room temperature. The resulting solution was concentrated under vacuum and the residue was diluted with 50 mL of water and extracted with 3×50 mL of ethyl acetate. The combined organic phases were washed with 100 mL of brine, dried over anhydrous sodium sulfate, filtered, and concentrated under vacuum. The residue was purified via column chromatography on silica gel (eluting with ethyl acetate/petroleum ether (1 : 1)) to afford methyl l-oxoisoindoline-4-carboxylate (2.08 g, 77%) as a light brown solid. 1H- NMR (DMSO, 300 MHz) d (ppm): 8.75 (s, 1H), 8.15 (d, J = 7.5Hz, 1H), 7.94 (d, J = 7.5Hz, 1H,), 7.65 (m, 1H ), 4.60 (s, 2H), 3.89 (s, 3H). MS: (ESI, m/z): 192[M +H]+.
These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 337536-15-9, its application will become more common.
Reference:
Patent; FORMA THERAPEUTICS, INC.; ZHENG, Xiaozhang; MARTIN, Matthew W.; NG, Pui Yee; THOMASON, Jennifer R.; HAN, Bingsong; RUDNITSKAYA, Aleksandra; LANCIA, JR., David R.; (180 pag.)WO2019/204550; (2019); A1;,
Indoline – Wikipedia,
Indoline | C8H9N – PubChem