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Novel Synthesis of 2-Oxo-2H-Benzopyrano[2,3-d]Pyrimidines
Journal article   Peer reviewed

Novel Synthesis of 2-Oxo-2H-Benzopyrano[2,3-d]Pyrimidines

H. Turki, S. Abid, Y. Le Bigot, S. Fery-Forgues and R. El Gharbi
Synthetic communications, Vol.34(19), pp.3553-3563
2004
DOI: https://doi.org/10.1081/SCC-200031013

Abstract

Benzopyranopyrimidines Iminocoumarins
The synthesis of novel substituted 3-cyanoiminocoumarins and corresponding N-ethoxycarbonyl iminocoumarins is described. The condensation of N-ethoxycarbonyl-3-cyano-7-diethylamino iminocoumarin with amines as N-nucleophiles yields substituted 2-oxo-2H-benzopyrano-[2,3-d]pyrimidines having promising optical properties.

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