2-Methyl-5-Nitroaniline → HCID 67494403, compound

Participants

Reaction Steps

To a suspension of the product of step 3 (2.05 g) in anhydrous dichloromethane (30 ml), a solution of 2-methyl-5-nitroaniline (3.04 g) and triethylamine (8 ml, excess allowed) in dichloromethane (15 ml) was added dropwise slowly in an ice-bath with the temperature no more than 5° C. After addition, the reaction was carried out for 30 min in an ice-bath, and then at room to temperature for 3 h. Completion of reaction was indicated by TLC. Potassium carbonate solution (10%) was added to the mixture. Then the mixture was extracted with EtOAc (20 ml*3). The organic layer was dried over anhydrous Na2SO4, filtered, and concentrated under reduced pressure to recover the solvent. The residue was purified on silica gel column (EtOAc/petroleum ether 4:1). The eluent was collected, concentrated under reduced pressure to give a yellow powdered solid.

Provenance & Evidence