Hydrochloric Acid → 3-(N-Methylpentylamino)propionic acid hydrochloride

Beteiligte Stoffe

Reaktionsbedingungen

Reaktionsschritte

68.8 g (367.4 mmol) N-methyl-N-pentyl-β-alanine methyl ester was hydrolyzed by refluxing with 138 ml water. Then the water is partly distilled off and 83 ml (472.7 mmol) hydrochloric acid (19%) was added. Water was distilled off again and 230 ml methyl ethyl ketone was added to remove residual water by azeotropic distillation. The reaction mixture was then cooled to 24° C. The crystallized product was separated and washed with methyl ethyl ketone and subsequently dried in vacuo. 63.7 g (82.7%) N-methyl-N-pentyl-β-alanine hydrochloride were obtained.

Herkunft & Nachweise