2-Phenylacetophenone → 1,2-Diphenyl-1-ethanone oxime

참여 물질

반응 단계

A mixture of 1,2-diphenylethanone (19.6 g, 100 mmol) and hydroxyl ammonium chloride (13.9 g, 200 mmol) in absolute ethanol (200 ml) was heated at reflux for 4 h. The solvent was evaporated in vacuo and the residue extracted with dichloromethane (2×100 ml). The combined organic phases were washed with water (2×50 ml) and brine (10 ml) and dried (MgSO4). The solvent was evaporated in vacuo and the residue left for crystallisation. The crystallised product was suspended in n-heptane/diethylether 20/1 and the precipitate collected to give 5.1 g of 1,2-diphenylethanone oxime.

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