Hydroxyamine hydrochloride → 6-Benzyloxy-2,2-dimethylchroman-4-one oxime

Beteiligte Stoffe

Reaktionsschritte

By heating 11.3 g (40 mmol) of 6-benzyloxy-2,2-dimethylchroman-4-one with 3.1 g (44 mmol) of hydroxylamine hydrochloride in 27 ml of ethanol and 27 ml of pyridine to 70° C. for 3 h, 12.5 g of product, m.p. 105-108° C., were obtained after distilling off the solvt in vac. and precipitating with water. The product was dissolved in EA, dried, concentrated and crystallized using petroleum ether; m.p. 118-120° C.

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