Succinimide → HCID 131728576, compound

Participants

Reaction Steps

2-Methyl-3,5-bis(trifluoromethyl)phenylboronic acid pinacol ester (24a, 2.0 g, 5.6 mmol) and 50 ml CCl4 were placed in a 250 ml round-bottom flask. NBS (1.05, 5.88 mmol, 1.05 eq) and AIBN (0.013 g, 0.078 mmol, 0.014 eq) were added and the reaction mixture was refluxed for 3 h in the presence of 75 W incandescent bulb. After 3 h the solution was cooled down to room temperature allowing the succinimide to precipitate out. The solid was filtered off. The solvent was removed and oily product was collected. The crude product was purified by triturating with hexane which resulted in 90% pure product (25a, 2.2 g, 90% yield).

Provenance & Evidence