Phosphoric Acid → HCID 74020148, compound

Participants

Reaction Steps

5-Chloro-2,4-dihydroxy-3-(1-hydroxydodecyl) benzaldehyde (300 mg, 0.84 mmol) was stirred in acetic acid (2 ml) in the presence of 85% phosphoric acid (0.81 ml) at a reflux temperature for one hour. The reaction mixture was cooled to room temperature, added with a saturated sodium chloride solution (20 ml). After extractive workup with ethyl acetate, the crude product was purified by, silica gel column chromatography (hexane:ethyl acetate=10:1) to obtain 5-chloro-3-(1-dodecenyl)-2,4-dihydroxybenzaldehyde (pale yellow solid 238 mg, yield 84%)

Provenance & Evidence