Potassium Carbonate → 2-[4-(3-Methoxybenzyl)-1-piperazinyl]-2,4,6-cycloheptatriene-1-one

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Reaction Steps

A mixture of 2-(1-piperazinyl)-2,4,6-cycloheptatriene-1-one acetic acid salt (0.171 g, 0.680 mmol, example 2a), 3-methoxybenzyl chloride (0.118 g, 0.750 mmol) and potassium carbonate (0.276 g, 2.00 mmol) in acetonitrile (2.00 mL) was stirred at room temperature for 16 h. The solvent was removed in vacuo. The residue was triturated with dichloromethane and filtered. The filtrate was concentrated in vacuo to dryness and the residue was subjected to preparative thin layer chromatography using ethyl acetate:methanol (9:1) as the eluent. The title compound was obtained as a yellow oil (0.095 g, 45%); MS (FAB) 311 (M+ +1).

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