
Chemistry of Heterocyclic Compounds p. 1272 - 1275 (2000)
Update date:2022-08-04
Topics:
Azimov
Ryabova
Alekseeva
Granik
3-p-Nitrophenylaminobenzofuran was obtained by the reaction of 2,3-dihydrobenzofuran-3-one with p-nitroaniline and was used in the Vilsmeier reaction for the synthesis of 2-formyl-3-p- nitrophenylaminobenzofuran. Treatment of the latter with malononitrile led to 1-p-nitrophenyl-2-imino-3- cyano-1,2-dihydropyrido[3,2-b]benzofuran.
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(2001)