Bis(4-chlorophenyl)acetic acid → HCID 18475024, compound

Participants

Reaction Steps

A suspension of the bis(4-chlorophenyl)acetic acid (10.40 g, 36.99 mmol) in dichloromethane (100 ml) was treated with oxalyl chloride (6.2 ml, 71.07 mmol) and dimethylformamide (1 drop). The mixture was stirred at room temperature overnight and was then concentrated under vacuum and coevaporated with toluene. The residue was dissolved in tetrahydrofuran (50 ml) and this solution was added to a mixture of 2-(methylamino)ethanol (6.0 ml, 74.7 mmol) in tetrahydrofuran (100 ml), water (50 ml) and sodium bicarbonate (10 g). The reaction was stirred at room temperature for 1 hour, then diluted with ethyl acetate. This was washed with water, HCl 1N, saturated sodium bicarbonate and brine, dried over anhydrous magnesium sulfate, filtered and concentrated. The residual white solid was crystallized from ethyl acetate to give the title compound (10.81 g, 86%).

Provenance & Evidence