反应详情

To a solution of ethyl 4-[4-(4-hexyloxyphenyl)piperazin-1-yl]benzoate (2.19 g) in the mixture of ethanol (22 ml) and tetrahydrofuran (22 ml) was added 2N NaOH aq. and refluxed for 5 hours. The reaction mixture was adjusted to pH 1-1.5 with 1N HCl and the resulting precipitate was collected by filtration to give 4-[4-(4-hexyloxyphenyl)piperazin-1-yl]benzoic acid hydrochloride (1.99 g).

1. temperaturerefluxed for 5 hours
2. filtrationthe resulting precipitate was collected by filtration