反应详情

The 1-(2,3,4-trimethoxybenzyl)-4-[bis(4-fluorophenyl)methyl]piperazine dihydrochloride obtained in Example 4 (20.0 g; 36.9 millimoles) was added to 100 ml of a 20% aqueous solution of sodium hydroxide. The resulting oily product was extracted with 100 ml of ethyl acetate. The ethyl acetate layer was dried over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure to give 11.1 g of 1-(2,3,4-trimethoxybenzyl)-4-[bis(4-fluorophenyl)methyl]piperazine as an oil.

1. extractionThe resulting oily product was extracted with 100 ml of ethyl acetate
2. dry with materialThe ethyl acetate layer was dried over anhydrous magnesium sulfate
3. customThe solvent was evaporated under reduced pressure