5-Nitrofurfural → HCID 20183842, compound

Participants

Reaction Steps

In 10 ml of ethanol were suspended 0.3 g of 6-(4-aminophenyl)-1-(4-fluorophenyl)-4-oxo-1,4-dihydronicotinic acid and 0.15 g of 5-nitrofurfural, and the suspension was subjected to reaction at 80° C. for 2 hours. After completion of the reaction, the reaction mixture was cooled to room temperature and the insolubles were removed by filtration. The solvent was removed by distillation under reduced pressure. Then, 10 ml of diethyl ether was added to the residue, and the insolubles were collected by filtration to obtain 0.13 g of 1-(4-fluorophenyl)-6-[4-{(5-nitrofurfurylidene)amino}-phenyl]-4-oxo-1,4-dihydronicotinic acid having a melting point of 129°-131° C.

Provenance & Evidence