Hydrochloric Acid → HCID 69659015, compound

Participants

Reaction Steps

To a stirred solution of oxindole (0.739 g, 5.55 mmol) in anhydrous dimethoxyethane (10 ml) under nitrogen was added 1.0M LiHMDS/THF solution (14.0 ml, 14.0 mmol). The mixture was stirred at room temperature for 10 minutes, and 5-[(2-chloro-ethyl)-methyl-amino]-3H-isobenzofuran-1-one (1.0 g, 4.4 mmol) was added. The mixture was stirred at room temperature for 3 hours and was then poured into 1M HCl aqueous solution (300 ml) with stirring. The resulting mixture was heated at 40° C. for 30 minutes. The solid was filtered, washed with water and dried under vacuum to afford 3-{5-[(2-chloro-ethyl)-methyl-amino]-3H-isobenzofuran-1-ylidene}-1,3-dihydro-indol-2-one as a yellow solid (1.20 g, 79%).

Provenance & Evidence