Indole-3-Carboxaldehyde → HCID 86681919, compound

Participants

Reaction Conditions

Reaction Steps

A solution of tert-butyl 4-((5-methoxy-3-oxo-2,3-dihydrobenzofuran-7-yl)methyl)piperazine-1-carboxylate (0.024 g, 0.066 mmol) in methanol (2.0 mL) was added with 1H-indole-3-carboxaldehyde (0.011 g, 0.073 mmol). Then, the mixture was added with 5 drops of piperidine, and the mixture was stirred at 50° C. for 2 hours. The solvent was evaporated under reduced pressure, and then the residue was subjected to silica gel column chromatography (aminopropyl silica was used, eluted with chloroform/methanol (90:10)) to obtain tert-butyl (Z)-4-({2-[(1H-indol-3-yl)methylene]-5-methoxy-3-oxo-2,3-dihydrobenzofuran-7-yl}methyl)piperazine-1-carboxylate (0.027 g, 84%).

Provenance & Evidence