Toluene → N-Cyanoacetylethylcarbamate

Beteiligte Stoffe

Reaktionsschritte

2-cyanoacetic acid (85 g, 1 mol) and ethyl aminoformate (89 g, 1 mol) were added to toluene (500 mL). To the mixture was slowly added phosphorus oxychloride (45 mL, 0.5 mol), and then added DMF (5 mL). The reaction was conducted at 70° C. for 2 h. After cooling, water (500 mL) was added to the reaction solution to quench phosphorus oxychloride. The reaction is filtered by suction. The filtered cake was washed with ethyl ether and dried to produce a white solid (104 g) in a yield of 67%.

Herkunft & Nachweise