反应详情

8.4 g (20 mmol) of 80% strength 1-benzyl-3-benzylmethylaminomethyl-3-methoxypyrrolidine are dissolved in 100 ml of methanol, 4.4 ml of concentrated hydrochloric acid are added and the mixture is hydrogenated on 4 g of 10% strength Pd/active carbon at 80° C. and 120 bar. The catalyst is filtered off, the solution is concentrated, a solution of 3 g of KOH in 50 ml of methanol are added, KCL is filtered off and the solution is concentrated. The residue is taken up in CHCl3 again, the mixture is filtered, the solution is concentrated and the residue is distilled.

1. filtrationThe catalyst is filtered off
2. concentrationthe solution is concentrated
3. additiona solution of 3 g of KOH in 50 ml of methanol are added
4. filtrationKCL is filtered off
5. concentrationthe solution is concentrated
6. filtrationthe mixture is filtered
7. concentrationthe solution is concentrated
8. distillationthe residue is distilled