2,3-DIHYDROBENZOFURAN-3-ONE IN THE SYNTHESIS OF 3-CYANO-2-IMINO-1-p-NITROPHENYL-1,2-DIHYDROPYRIDO[3,2-b]BENZOFURAN

Abstract

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.

Authors: V. A. Azimov, S. Yu. Ryabova, L. M. Alekseeva, and V. G. Granik.

English Translation in Chemistry of Heterocyclic Compounds, 2000, 36 (11), pp 1272-1275

http://link.springer.com/article/10.1023/A%3A1017563216174