Abstract
A one-pot, three-component reaction of dimedone, anilines. and isatin has been described leading to the synthesis of 2-arylpyrroloacridin-1(2H)-ones in the presence of tris(hydrogensulfato) boron [B(HSO4)3] at reflux in ethanol. However, in the cases of aliphatic amines, tetrahydroxanthene has been obtained from the reaction of isatin and dimedone.
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