Hydrochloric Acid → 3-(4-Bromophenoxy)propanoic acid

Beteiligte Stoffe

Reaktionsbedingungen

Reaktionsschritte

To a solution of aqueous NaOH (0.5 M, 0.2 mol) was slowly added 4-bromophenol (34.4 g, 0.2 mol) at room temperature. After heating to boiling, 3-bromopropanoic acid (30.60 g 0.2 mol) in aqueous NaOH (0.5M, 0.2 mol) was added dropwise to the mixture above. The resulting mixture was then refluxed for 2 h. The mixture was cooled to 0° C. and the pH of the mixture was adjusted to 6-7 with 0.5 N HCl. The resulting mixture was filtered to give a solid cake, which was washed with water and n-pentane and dried to give 3-(4-bromophenoxy)propanoic acid (30 g, 60%). 1H-NMR (CDCl3): 2.72 (m, 2H), 4.90 (s, 1H), 5.01 (d, 1H), 5.50 (s, 1H), 6.73 (m, 1H), 7.21-7.43 (m, 6H), 7.61 (m, 1H).

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