反应详情

To a solution of 1-hydroxybenzotriazole (244 mg) and 4-[5-(4-pentyloxyphenyl)isoxazol-3-yl]benzoic acid (528 mg) in dichloromethane (10 ml) was added 1-ethyl-3-(3′-dimethylaminopropyl)carbodiimide hydrochloride (WSCD•HCl) (430 mg) and the mixture was stirred for 4.5 hours at ambient temperature. The reaction mixture was added to water. The organic layer was taken and dried over magnesium sulfate. Magnesium sulfate was filtered off, and the filtrate was evaporated under reduced pressure to give 4-[5-(4-pentyloxyphenyl)isooxazol-3-yl]benzoic acid benzotriazol-1-yl ester (640 mg).

1. dry with materialdried over magnesium sulfate
2. filtrationMagnesium sulfate was filtered off
3. customthe filtrate was evaporated under reduced pressure