Trifluoroacetic acid → 2-(1H-Indol-3-yl)quinoline-4-carboxylic acid

Participants

Reaction Steps

To a 3 mL plastic tube fitted with a frit containing 50 mg of resin-bound 2-(3-indolyl)quinoline-4-carboxylate (0.035 mmol) was added 1 mL of a 50% mixture of TFA and DCM. The reaction mixture was agitated on an orbital shaker for 30 min. The mixture was filtered and the resin washed with DCM (3×3 mL). The organic solutions were combined and evaporated by a stream of nitrogen. The residual solid was lyophilized to give 2-(3-indolyl)quinoline-4-carboxylic acid or amide (80-100% yield).

Provenance & Evidence