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A solution of 103 g. of 4-chloro-2-(3-trifluoromethyl-phenoxy)-benzoic acid methyl ester in 400 ml. of tetrahydrofuran is added dropwise at reflux over a period of 30 minutes to a solution of 16.2 g. of lithium borohydride in 280 ml. of absolute tetrahydrofuran. The mixture is then cooled to 0° C. and slowly added dropwise to 400 ml. of 3-N aqueous hydrochloric acid. After the addition of 500 ml. of water, the mixture is extracted twice with ether. After evaporation of the ether, there is obtained 4-chloro-2-(3-trifluoromethyl-phenoxy)-benzyl alcohol in the form of an oil.

1. temperatureat reflux over a period of 30 minutes to a solution of 16.2 g
2. additionslowly added dropwise to 400 ml
3. additionAfter the addition of 500 ml
4. extractionof water, the mixture is extracted twice with ether
5. customAfter evaporation of the ether