Hydroxide → 4-Cyclohexyl-1,1-dimethyl-piperazinium hydroxide

Reaktionsgleichung

[I-].[OH-:2].[CH:3]1([N:9]2[CH2:14][CH2:13][N+:12]([CH3:16])([CH3:15])[CH2:11][CH2:10]2)[CH2:8][CH2:7][CH2:6][CH2:5][CH2:4]1>O>[OH-:2].[CH:3]1([N:9]2[CH2:10][CH2:11][N+:12]([CH3:16])([CH3:15])[CH2:13][CH2:14]2)[CH2:8][CH2:7][CH2:6][CH2:5][CH2:4]1

Komponenten

Versuchsvorschrift

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.