反应详情

温度

25 °C

36.3 parts of β-(2,2,6,6-tetramethylpiperidine-4-yl)amino-propionic acid hydrazide are dissolved in 100 parts of toluene, followed by the dropwise addition of 28.2 parts of 93% methoxymethyl isocyanate. After stirring for 1 hour at 25° C., the deposit is filtered off under suction. The filter residue is stirred with 300 parts of petroleum ether and refiltered under suction. 48 parts of colourless crystals melting at 62° to 65° C. are left after drying.

1. filtrationthe deposit is filtered off under suction
2. stirringThe filter residue is stirred with 300 parts of petroleum ether
3. wait48 parts of colourless crystals melting at 62° to 65° C. are left
4. customafter drying