Hydrochloric Acid → HCID 3720342, compound

Participants

Reaction Steps

Methyl 2-amino-3-(4-fluorophenyl)propionate (2.01 g), p-toluenesulfonyl chloride (2.25 g) and 4-dimethylaminopyridine (309 mg) were dissolved in chloroform (30 ml), and pyridine (3.0 ml) was added to heat the mixture under reflux for 4.5 hours. P-Toluenesulfonyl chloride (2.20 g) was additionally added, and the mixture was heated under reflux for 3.5 hours. The reaction mixture was poured into ice and 1N hydrochloric acid (17 ml) to conduct liquid separation. The resultant organic layer was successively washed with a saturated aqueous solution of sodium hydrogencarbonate and saturated aqueous solution of sodium chloride and dried over anhydrous sodium sulfate. The solvent was distilled off under reduced pressure, and the residue was purified by column chromatagraphy on silica gel (hexane:ethyl acetate=9:1→2:1) to obtain the title compound (2.89 g).

Provenance & Evidence