Abstract
5-Nitro-2-furylglyoxylic acid is prepared from 5-nitro-2-furacylpyridinium bromide via 4-dimethylaminophenylirnino (5-nitro-2-furoyl) acetonitrile, and also by the action of N -bromosuccinimide on 5-nitro-2-furylglyoxal. The following derivatives are prepared: semicarbazone, thiosemicarbazone, guanylhydrazonef 2, 4-dinitrophenylhydrazone, 4-dimethylaminoanilide and 3- (5-nitro-2-furyl) quinoxalin-2-ol.
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Saldabol, N.O., Hiller, S.A. Syntheses in the methyl-2-furylketone series. Chem Heterocycl Compd 2, 654–656 (1968). https://doi.org/10.1007/BF00664826
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DOI: https://doi.org/10.1007/BF00664826