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a,a0-Benzylidene bis(4-hydroxycoumarin) derivatives were readily prepared in a few minutes with good yields through the reaction of an aromatic aldehyde and 4-hydroxycoumarin in aqueous media in the presence of catalytic tris(hydrogensulfato) boron [B(HSO4)3].
کلید واژگان :Biscoumarin; 4-Hydroxycoumarin; Tris(hydrogensulfato)boron; Heterogeneous catalyst
ارزش ریالی : 600000 ریال
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