4'-Hydroxyacetophenone → 2-Bromo-1-(4-hydroxyphenyl)ethanone

Participants

Reaction Steps

Phenyltrimethylammonium tribromide (276 g, 734 mmol) was added to a suspension of 4-hydroxyacetophenone (100 g, 734 mmol) in tetrahydrofuran (1000 ml) at room temperature. After stirring for 3 hours, the resulting suspension was filtered, and the filtrate was concentrated under reduced pressure. The residue was washed with diisopropyl ether to afford 2-bromo-1-(4-hydroxyphenyl)-ethan-1-one (85 g, 54%) as white crystals.

Provenance & Evidence