反应 #816382

反应方程式

iodide

hydroxide

iodide

R′I

4-cyclohexyl-1,1-dimethyl-piperazinium

→

4-cyclohexyl-1,1-dimethyl-piperazinium hydroxide

溶剂

water

反应条件

后处理

1. 1
   workup.ADDITION62 g of Dowex SBR resin is added to the solution
2. 2
   其他obtained
3. 3
   过滤Afterwards, it is filtered
4. 4
   洗涤washed with distilled water

实验过程

The iodide of the cation is exchanged for hydroxide using an ion exchange resin in accordance with the following procedure: 20 g (62 mmol) of the iodide of the cation (R′I) is dissolved in water. 62 g of Dowex SBR resin is added to the solution obtained and it is kept under stirring until the following day. Afterwards, it is filtered, washed with distilled water and a solution of 4-cyclohexyl-1,1-dimethyl-piperazinium hydroxide (R′OH) is obtained which is titrated with HCl (aq.) using phenolphthalein as indicator, obtaining an efficiency in the exchange of higher than 90%. The final solution contains 1 equivalent of hydroxide per 1000 g of solution.

来源