反应详情

A solution of p-phenoxyphenylmagnesium bromide (obtained from 2.49 g. of 4-bromodiphenyl ether and 0.24 g. of magnesium in 100 ml. of ether) is added dropwise at 20°, with stirring, to a solution of 1.3 g. of acetoacetic acid ethyl ester in 40 ml. of ether, and the mixture is stirred for a further two hours, the resulting alcoholate is decomposed by means of ice and saturated NH4Cl solution, and the ethereal phase is dried and evaporated to give 3-p-phenoxyphenyl-3-hydroxybutyric acid ethyl ester.

1. customthe ethereal phase is dried
2. customevaporated