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With stirring, 13 g of crude 4-(2-hydroxyethoxy)phenol, 35 m of epichlorohydrin and 23.5 g of potassium carbonate are heated for 11/2 hours to reflux temperature. The reaction mixture is filtered and the filtrate is concentrated by evaporation under reduced pressure. The residual oil gradually congeals to a crystalline solid, which is recrystallised from isopropanol, affording 1-(2,3-epoxypropoxy)-4-(2-hydroxyethoxy)benzene with a melting point of 65°-67° C. Working up of the mother liquor yields further crystalline product.

1. temperatureto reflux temperature
2. filtrationThe reaction mixture is filtered
3. concentrationthe filtrate is concentrated by evaporation under reduced pressure
4. customis recrystallised from isopropanol