Ammonia → 5-Benzyloxy-6-methyl-1H-indole-2-carboxylic acid methyl ester

Participants

Reaction Conditions

Reaction Steps

To a solution of (Z)-3-(5-benzyloxy-2-bromo-4-methylphenyl)-2-benzyloxycarbonylaminoacrylic acid methyl ester (0.2 g) and copper (I) iodide (0.075 g) in dimethylsulfoxide (8 mL) was added cesium acetate (0.38 g) at room temperature and this mixture was stirred under argon atmosphere at 90° C. for 5 hours. To this reaction mixture was added aqueous ammonia solution (28%) and the precipitated solid was collected by filtration, and washed with water, dried under reduced pressure to give the title compound (0.073 g).

Provenance & Evidence