反应条件
1: 1-(4-Aminophenyl)methyl-1,2,4-triazole With hydrogenchloride in water T=25 - 30°C; 0.333333 - 0.5 h; 2: With sodium nitrite in water T=0 - 5°C; 3 h; 3: 4-(N,N-dimethylamino)butyraldehyde diethyl acetal With sulfuric acid; ammonia; sodium sulfite Product distribution / selectivity; more than 3 stages;