反应详情

916 mg (5 mmol) of 2-hydroxy-4-nitro-benzoic acid is dissolved in a mixture that consists of 8 ml of methanol and 32 ml of toluene, and it is slowly mixed with a solution of trimethylsilyldiazomethane in hexane (2 molar). After the addition is completed, stirring is continued for 1.25 hours at room temperature. After the reaction mixture is concentrated by evaporation, 1 g (about 100% of theory) of 2-hydroxy-4-nitro-benzoic acid methyl ester is obtained.

1. additionAfter the addition
2. concentrationAfter the reaction mixture is concentrated by evaporation