[C:1]([O-:5])(=O)[CH2:2][OH:3].C=C.[K+].[N+:9]([C:12]1[CH:17]=[C:16]([N+:18]([O-:20])=[O:19])[CH:15]=[CH:14][C:13]=1Cl)([O-:11])=[O:10].O>C(O)CO>[N+:9]([C:12]1[CH:17]=[C:16]([N+:18]([O-:20])=[O:19])[CH:15]=[CH:14][C:13]=1[O:3][CH2:2][CH2:1][OH:5])([O-:11])=[O:10]200 ml of ethylene glycol and 40 ml of the mono-potassium ethylene glycolate solution prepared under Example 3 were introduced initially under nitrogen and were heated to 65° C. in a 2 l reaction vessel fitted with a stirrer. Over the course of 5 h, 162 g of molten 2,4-dinitro-chloro-benzene and the remainder of the mono-potassium ethylene glycolate solution in ethylene glycol were simultaneously metered in. The mixture was then stirred for one hour at 65° C., and then 600 ml of water were added. The precipitate which formed was filtered off and washed with 1000 ml of water and dried, giving 169.7 g of 2-(2′,4′-dinitrophenoxy)-ethanol in a purity of 92%. Hence, a yield of 92% is achieved based on 2,4-dinitrochlorobenzene.
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