反应详情

As a starting material a solution of crude 2-(3-phenoxyphenyl)-1,3-dioxolane obtained in Example 7 after neutralization is used. The solution in xylene is boiled with a mixture of 48 ml. of concentrated sulfuric acid and 530 ml. of water with stirring for 3 hours. Upon cooling the phases are separated. 211 g. (71%) of 3-phenoxybenzaldehyde are obtained, boiling at 128° to 130° C./0.4 mmHg. The yield is calculated for the starting material of Example 7. The purity of the obtained product is better than 95% (determined by gas chromatography);

1. temperatureUpon cooling the phases
2. customare separated