4-Cyanobenzoic acid → HCID 60637584, compound

Participants

Reaction Steps

To a solution of 4-cyanobenzoic acid (2.0 g, 13.59 mmol), ethyl 4-aminobutyrate hydrochloride (2.507 g, 14.95 mmol), HOBt (0.918 g, 6.80 mmol) and TEA (6.63 mL, 47.58 mmol) in DMF (20 mL) was added WSC (3.26 g, 16.99 mmol), and the mixture was stirred at room temperature for 14 hr. Water was poured into the reaction mixture, and the mixture was extracted with ethyl acetate. The organic layer was washed with water and saturated brine, and dried, and the solvent was evaporated under reduced pressure. The obtained residue was purified by silica gel column chromatography (solvent gradient; 5 to 75% ethyl acetate/hexane) to give ethyl 4-(4-cyanobenzamido)butanoate (1.558 g, 5.99 mmol, 44.0%) as a white powder.

Provenance & Evidence