Potassium Hydroxide → Ethyl 3-amino-6-chloro-1H-indole-2-carboxylate

Participants

Reaction Steps

Add 1N ethanolic potassium hydroxide solution (100 mL) to 3-amino-1-(ethanoyl)-6-chloro-1H-indole-2-carboxylic acid ethyl ester (3.5 g, 12.5 mmol) and permit the reaction to stand for 20 min. Pour the resulting slurry into water at 5° C. with rapid stirring. Age at 0° C. for 10 min., collect the solid, wash it with water dry it at 40° C. under vacuum and obtain 2.42 g (81%) of the title compound: MS 239(M+H).

Provenance & Evidence