Synthesis of a New Series of 4H-benzo[h]chromenes by a Multicomponent Reaction under Solvent-Free Microwave Conditions

Document Type : Research Article


1 Department of Organic Chemistry, Faculty of Chemistry, Urmia University, Urmia, I.R. IRAN

2 Department of Chemistry, Ahar Branch, Islamic Azad University, Ahar, I.R. IRAN


Multicomponent condensation of 1-naphthol, malononitrile, and arylglyoxals in the presence of Mg-Al hydrotalcite under solvent-free MicroWave (MW) conditions gave a new series of 2-amino-4-aroyl-4H-benzo[h]chromene-3-carbonitriles in high yields (70-89%). The structure of all products was elucidated by their FT-IR, 1H-NMR, 13C-NMR spectral data and microanalysis.


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