Water → 10,11-Dihydro-2-trifluoromethyl-dibenzo[b,f]thiepin-10-ol

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Reaction Conditions

Reaction Steps

12 g of 10,11-dihydro-2-trifluoromethyl-dibenzo[b,f]thiepin-10-one are dissolved in 110 ml of absolute ethanol and treated with 4 g of sodium borohydride. The mixture is held at reflux for 12 minutes, cooled to 30° C and treated with 350 ml of water and 100 ml of chloroform. After equilibration, the organic phase is washed with aqueous sodium chloride solution, dried over sodium sulphate and evaporated under reduced pressure. There is obtained 10,11-dihydro-2-trifluoromethyl-dibenzo[b,f]thiepin-10-ol in the form of yellow crystals which melt at 122°-123° C.

Provenance & Evidence