反应详情

A mixture of 5-(acetylamino)-2-bromobenzoic acid (2.58 g, 10 mmol), 1-hydroxybenzotriazole (1.68 g, 11 mmol), dimethylaminopyridine (1.22 g, 10 mmol) and 1-(3-dimethylaminopropyl)-ethylcarbodiimide hydrochloride (2.20 g, 11.5 mmol) in dichloromethane/ethanol (5:1, 30 ml) was stirred at room temperature for 2 hours then washed with saturated sodium bicarbonate solution, dried (magnesium sulphate) and chromatographed on silica eluting with ethyl acetate/iso-hexane (2:3) to give 2.18 g of white solid.

1. washthen washed with saturated sodium bicarbonate solution
2. dry with materialdried (magnesium sulphate)
3. customchromatographed on silica eluting with ethyl acetate/iso-hexane (2:3)