Methyl 2-amino-4-chloro-5-nitrobenzoate → 4-Chloro-2-[2-(3,5-dimethylphenyl)-acetylamino]-5-nitro-benzoic acid methyl ester

Beteiligte Stoffe

Reaktionsschritte

To a suspension of 2-amino-4-chloro-5-nitrobenzoic acid methyl ester (989 mg in 15 mL of dry 1,2-dichloroethane) was added a solution of (3,5-dimethylphenyl)acetyl chloride (860 mg in 5 mL dry 1,2-dichloroethane) and the mixture heated at reflux on an oil bath. After 18 hours, an additional portion of (3,5-dimethylphenyl)acetyl chloride (274 mg in 1.5 mL dry 1,2-dichloroethane) was added and the mixture heated at reflux for an additional 5 hours. At this time the reaction was cooled and the solvent removed in vacuo. Recrystallization of the crude product from methanol gave the title compound (1.17 g).

Herkunft & Nachweise