3-Chloro-1,2-propanediol → HCID 58442471, compound

Participants

Reaction Conditions

Reaction Steps

A pressure glass vessel charged with 1-(4-hydroxy-2,6-dimethylphenyl)ethanone (2.00 g, 12.2 mmol, 1.0 equiv) and 3-chloropropane-1,2-diol (1.02 mL, 12.2 mmol, 1.0 equiv) in 50% aqueous NaOH solution (20.0 mL) was heated at 140° C. for 16 h. The mixture was diluted with H2O (20 mL) and extracted with EtOAc. The organic layer was collected, dried over MgSO4(s), and concentrated under reduced pressure. The residue was purified by column chromatography on silica gel (30% EtOAc in hexanes as eluant) to provide 1-(4-(2,3-dihydroxypropoxy)-2,6-dimethylphenyl)ethanone (1.66 g, 7.0 mmol) as yellow oil in 57% yield: 1H NMR (CDCl3, 500 MHz) δ o 6.57 (s, 2 H), 4.10-4.11 (m, 1 H), 4.08-4.09 (m, 2 H), 4.01-4.02 (m, 1 H), 3.74-3.75 (m, 1 H), 2.58-2.59 (s, 1 H), 2.45 (s, 3 H), 2.23 (s, 6 H), 2.05-2.10 (s, 1 H); ESI-MS: m/z 239.9 (M+H)+.

Provenance & Evidence