Potassium Carbonate → HCID 67087064, compound

Participants

Reaction Steps

To 4-(4-Hydroxy-butyl)-phenol (32.7 g, 197 mmol) in acetone (600 ml) is added potassium carbonate (40.8 g, 295 mmol) followed by (S)-glycidol (13.7 ml, 207 mmol). The mixture is heated at reflux overnight. Further potassium carbonate (20 g) is added, followed by (S)-glycidol (5 g) and the mixture is heated at reflux for 72 hours. The suspension is cooled, filtered and the filtrate concentrated in vacuo. The residue is partitioned between EtOAc (500 ml) and 5% citric acid solution (500 ml). The organics are separated, dried (MgSO4) and concentrated in vacuo to give (S)-3-[4-(4-Hydroxy-butyl)-phenoxy]-propane-1,2-diol as a brown oil; 1H NMR (CDCl3): 1.56-1.74 (4H, m), 2.20 (1H, t, J=2.46 Hz), 2.61 (2H, t, J=7.6 Hz), 3.68 (2H, t, J=6.2 Hz), 3.78 (1H, dd, J=5.4 and 11.5 Hz), 3.86 (1H, dd, J=3.9 and 11.5 Hz), 4.0-4.16 (3H, m), 6.85 (2H, d, J=8.6 Hz), 7.12 (2H, d, J=8.6 Hz).

Provenance & Evidence