Water → 3-Chloro-4-(4-methylpiperazin-1-yl)aniline

Beteiligte Stoffe

Reaktionsbedingungen

Reaktionsschritte

298 mg. (0.92 mmol) of [3-chloro-4-(4-methyl-piperazin-1-yl)-phenyl]-carbamic acid tert-butyl ester (Example 65b) are dissolved in 5 ml of 4 N HCl in dioxane. The solution is stirred for 4 h at 50° C., and after this time water is added and the pH is adjusted to 8 with NaHCO3. The suspension is extracted with n-butanol. The organic phase is washed with water, dried over MgSO4 and evaporated to dryness to provide the title compound. Title compound: ES-MS: 226.2 (M+Hr; analytical HPLC: tret=3.09 minutes (Grad 2).

Herkunft & Nachweise