Water → HCID 54395130, Verbindung

Beteiligte Stoffe

Reaktionsschritte

Epichlorohydrin (24 g, 0.261 mol) is added to a mixture of 16.31 g (0.408 mol) of sodium hydroxide, 45 ml of water, and 0.761 g (2.24 mmol) of tetrabutylammonium hydrogen sulfate that is previously cooled in an ice-water bath for 20 minutes. To this mixture is added dropwise over 45 minutes with rapid stirring, a solution of 10.32 g (46.0 mmol) of 2-hydroxy-1-[4-(2-hydroxy-ethoxy)phenyl]-2-methylpropan-1-one in 95 ml of 1,2-dimethoxyethane. The reaction mixture is stirred overnight at room temperature. The aqueous layer is removed, and the organic layer is concentrated. Purification by flash chromatography on silica gel (1:1 heptane:ethyl acetate) affords 9.20 g (71% of theoretical yield) of the title compound, a pale yellow liquid.

Herkunft & Nachweise