反应详情

To a solution of 5-hydroxy-α,α,α′,α′-tetramethyl-1,3-benzenedimethanol (20.0 g, 95.1 mmol) in ethanol (600 mL), concentrated hydrochloric acid (12.0 mL) and a 10% palladium-carbon catalyst (11.0 g) were added, and the mixture was stirred under hydrogen atmosphere for 22 hours at room temperature. The reaction mixture was subjected to filtration, and the filtrate was concentrated under reduced pressure, to thereby yield a white solid. The thus-obtained solid was crystallized from hexane, to thereby yield 16.5 g of 3,5-diisopropylphenol as colorless needles (yield 97.3%).

1. filtrationThe reaction mixture was subjected to filtration
2. concentrationthe filtrate was concentrated under reduced pressure
3. customto thereby yield a white solid
4. customThe thus-obtained solid was crystallized from hexane