Reaction of ethyl ester and nitrile of 5-methyl-2-furancarboxylic acid with mixture of nitric and sulfuric acids

Article abstract of DOI:10.1007/BF02283540

The reaction of 70% HNO₃ with ethyl 5-methyl-2- furancarboxylate in concentrated H₂SO₄ gave the corresponding 4-nitro derivative and ethyl 5-formyl-2-furancarboxylate. Only 4-nitro derivative, which was converted into amid