Hydrochloric Acid → HCID 22467532, compound

Participants

Reaction Steps

A mixture of methyl 5-cyano-2-(cyclopentylamino)benzoate (2.30 g), methanol (100 mL) and 1N-sodium hydroxide solution (20 mL) was heated for 2 hours under reflux. The reaction mixture was acidified with 1N-hydrochloric acid to pH 4 and the organic solvent was removed by evaporation. The aqueous layer was diluted with water and extracted with ethyl acetate. The organic layer was washed with water and brine and dried over magnesium sulfate. Then, the resultant was evaporated in vacuo to give 5-cyano-2-(cyclopentylamino)benzoic acid (2.15 g) as pale yellow powders.

Provenance & Evidence