(2,4-Dichlorophenoxy)Acetic Acid → 2-(2,4-Dichlorophenoxy)ethanol

Participants

Reaction Steps

To a solution of 15.0 g of 2,4-dichlorophenoxyacetic acid in tetrahydrofuran (300 ml) was added dropwise 96 ml of 1.0 M borane-tetrahydrofuran complex/tetrahydrofuran solution under ice-cooling over 1.5 hours. The reaction solution was stirred at room temperature for 22 hours. After the reaction solution was concentrated, the residue was diluted with saturated aqueous ammonium chloride and ethyl acetate. The organic layer was washed with saturated ammonium chloride, saturated aqueous sodium hydrogen carbonate (×2) and saturated ammonium chloride, then dried over anhydrous sodium sulfate and concentrated, to give 14 g the title compound as a colorless oil.

Provenance & Evidence