反应详情

In 24 ml of tetrahydrofuran was suspended 0.60 g (16 mmol) of lithium aluminum hydride, to which a suspension consisting of 24 ml of tetrahydrofuran and 3.0 g (6.3 mmol) of 1-(4-benzyloxyphenyl)-2-(4-diphenylmethylpiperazinyl)ethanone was added portionwise under ice-cooled conditions. After being stirred for 0.5 hour, the resultant mixture was added dropwise with 5 ml of ethyl acetate, followed by further addition of 50 ml of ethyl acetate. The thus prepared solution was poured into an aqueous solution of ammonium chloride, and the organic layer was separated. The organic layer was washed twice with saturated saline and then dried over anhydrous sodium sulfate. The solvent was removed, and the residue was recrystallized from a mixed solvent of ethanol and chloroform to give 2.37 g of 1-(4-benzyloxyphenyl)-2-(4-diphenylmethylpiperazinyl)ethanol (yield: 79%).

1. additionwas added portionwise under ice-
2. temperaturecooled conditions
3. customthe organic layer was separated
4. washThe organic layer was washed twice with saturated saline
5. dry with materialdried over anhydrous sodium sulfate
6. customThe solvent was removed
7. customthe residue was recrystallized from a mixed solvent of ethanol and chloroform