| abstract |
Novel substituted N-[1-(3,4-methylenedioxyphenyl)-propyl-(2)]-N'-phenylpiperazines of the formula I shown, wherein either R1 and R2 denote chlorine or R1 denotes methyl and R2 denotes methoxy, are prepared by treating an appropriately substituted halogenopropane, especially an appropriately substituted chloropropane, with catalytically activated hydrogen. Advantageously, the process is carried out in the presence of an acid-binding agent and at an elevated temperature. The compounds of the formula I may be obtained in the form of the racemates or of the optically active antipodes. The products of the process show a good central-depressant action as well as an excellent blood lipid level-lowering and cholesterol-lowering action. |