反应详情

温度

25 °C

In a separate reactor, DMSO (17.6 g, 16.0 ml) was charged followed by, 32% aqueous NaOH (7.86 g, 5.82 ml, 62.9 mmol, Eq: 1.0) and water (5.00 g, 5.00 ml). A solution of 2-cyanoacetamide (7.93 g, 94.3 mmol, Eq: 1.50) in DMSO (17.6 g, 16.0 ml) was added dropwise over 15 min at 25° C. The previously prepared benzyl azide solution was added dropwise over 4 h at 25° C. The reaction was stirred overnight at 25° C. and water (120 g, 120 ml) was added dropwise over 30 min at 25° C. (exothermic). The resulting suspension was cooled over 30 min to 0° C., stirred at 0° C. for 30 min and filtered. The filter cake was washed with water (40.0 g, 40.0 ml) and was dried at 50° C./5 mbar to give 12.6 g of the title compound.

1. temperatureThe resulting suspension was cooled over 30 min to 0° C.
2. stirringstirred at 0° C. for 30 min
3. filtrationfiltered
4. washThe filter cake was washed with water (40.0 g, 40.0 ml)
5. customwas dried at 50° C./5 mbar