Abstract A convenient and efficient solvent-free. facile. one-pot three-component graphene oxide catalysed approach has been described for the synthesis of chromeno-[4. 3-b]quinolin-6-one derivatives from 4-hydroxycoumarin with aldehydes and aromatic amines. https://www.bbmbatteryes.shop/product-category/111/
One-pot three-component tandem annulation of 4-hydroxycoumarine with aldehyde and aromatic amines using graphene oxide as an efficient catalyst
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