[CH3:1][C:2]1[C:7]([N+:8]([O-:10])=[O:9])=[CH:6][C:5]([CH3:11])=[CH:4][C:3]=1[OH:12].C(=O)([O-])[O-].[K+].[K+].[CH2:19](Cl)[C:20]1[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=1>CN(C)C=O>[CH3:1][C:2]1[C:7]([N+:8]([O-:10])=[O:9])=[CH:6][C:5]([CH3:11])=[CH:4][C:3]=1[O:12][CH2:19][C:20]1[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=1A mixture of 433 g. 2,5-dimethyl-3-nitrophenol, 360 g. potassium carbonate, 326 ml. benzyl chloride and 2 liters dimethyl formamide is stirred overnight at 50° C. The reaction mixture is then filtered with suction and the filtrate is evaporated to dryness in a vacuum. The residue is poured on to 4 liters of ice-water and, after suction filtration and drying in the air, there are obtained 668 g. of yellowish crystals; m.p. 66°-68° C.
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