Trifluoroacetic acid → HCID 21469421, compound

Participants

Reaction Steps

TFA (10 mL) was added in one portion at ambient temperature to a stirred solution of methyl 3-[1-(tert-butoxycarbonyl)piperidin-4-yl]-1H-indole-5-carboxylate (4.58 g, 12.78 mmol) in DCM (30 mL). The resulting solution was stirred for 30 minutes then applied to an SCX column and eluted with methanol followed by 2M ammonia in methanol. Pure fractions were combined and concentrated by evaporation then triturated with ether to give a solid which was collected by filtration and air dried to give methyl 3-(piperidin-4-yl)-1H-indole-5-carboxylate (2.69 g, 81%) as a pale yellow solid.

Provenance & Evidence