Trifluoroacetic acid → Trifluoroacetic acid

Participants

Reaction Steps

Trifluoroacetic acid (30 ml) was added to a solution of 4-[(1,3-dioxoisoindolin-2-yl)methyl]-4-fluoropiperidinecarboxylic acid tert-butyl ester (23 g) in dichloromethane (250 ml), and the mixture was stirred at room temperature for 5 hours. The obtained solution was concentrated, and the residue was recrystallized from ether to obtain a trifluoroacetic acid salt of 2-(4-fluoro-piperidin-4-ylmethyl)-isoindole-1,3-dione.

Provenance & Evidence