Benzyl 1-(4-ethoxycarbonylbutyl)indole-2-carboxylate → HCID 19085099, compound

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Reaction Steps

Benzyl 1-(4-ethoxycarbonylbutyl)indole-2-carboxylate (12.44 g) was dissolved in ethanol (120 ml). The mixture was subjected to catalytic reduction by blowing a hydrogen gas in the presence of 10% palladium/carbon. The reaction mixture was filtered through Celite to remove catalyst. The solvent was evaporated, and the residue was purified by silica gel column chromatography using a mixed solvent of ethyl acetate and hexane as an eluent to give 2.19 g of 1-(4-ethoxycarbonylbutyl)indole-2-carboxylic acid.

Provenance & Evidence