5-Nitrofuroyl chloride → 5-(5-Nitrofuran-2-yl)-3-phenyl-1,2,4-oxadiazole

Beteiligte Stoffe

Reaktionsschritte

N-Hydroxy-benzamidine (0.3 g; 2.1 mmol) was dissolved in 10 ml of dry pyridine and added 0.5 g of 5-nitro-furan-2-carbonyl chloride (2.8 mmol). The reaction mixture was heated at reflux for 3 hours, cooled to room temperature and poured into 50 ml of ice/water, the product precipitated out of solution and was isolated by filtration. Yield 0.3 g (41%) of yellow solid. Mp. 164-166° C.

Herkunft & Nachweise