反应详情

A mixture of 0.7 g (2.1 mM) of 1-[2-(bis-(4-fluorophenyl) -methoxy)-ethyl]piperazine and 150 mg (2.1 mM) of freshly distilled methylvinyl-ketone was stirred at room temperature for 2 h. 30 ml of ethanol and 0.48 g of maleic acid were added, the precipitated salt was isolated by filtration and recrystallized from hot acetonitrile to yield the dimaleate salt of the title compound as colourless crystals melting at 159°-160° C. Analytical data were in accordance with the proposed structure.

1. customthe precipitated salt was isolated by filtration
2. customrecrystallized from hot acetonitrile