3-Methoxy-4-{4-[4-(trifluoromethyl)phenoxy]phenoxy}pent-2-en-1-ol → 4-{4-[4-(Trifluoromethyl)phenoxy]phenoxy}pent-1-en-3-one

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Reaction Steps

The alcohol (600 mg) is stirred with 5 ml of 35% HClo4 in CH2Cl2 (5 ml) for about 20 minutes. The solution is then extracted with CH2Cl2 followed by washing, drying and evaporation. The product is then purified by prep. thin layer chromatography to give 4-[4-(4-trifluoromethylphenoxy)phenoxy]-3oxo-1-pentene, MS m/e 336 (M+).

Provenance & Evidence