Solvent-free one-pot rapid synthesis of 3-carboxycoumarins . using focused microwaves

Solvent-free one-pot rapid synthesis of 3-carboxycoumarins . using focused microwaves

Reaction of 2-hydroxy- or 2-methoxy-substituted benzaldehydes or acetophenones with Meldrum's acid in the presence of environmentally-friendly catalysts, like natural kaolinitic clays, EPZ10 and EPZG, without solvent using focused microwaves afforded 3-carboxycoumarins in excellent yields.

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Veröffentlicht in:Green chemistry : an international journal and green chemistry resource : GC 1999, Vol.1 (5), p.243-245
Hauptverfasser: P Bandgar, B, S Uppalla, L, S Kurule, D
Format: Artikel
Sprache:eng
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Zusammenfassung:Reaction of 2-hydroxy- or 2-methoxy-substituted benzaldehydes or acetophenones with Meldrum's acid in the presence of environmentally-friendly catalysts, like natural kaolinitic clays, EPZ10 and EPZG, without solvent using focused microwaves afforded 3-carboxycoumarins in excellent yields.
ISSN:1463-9262
DOI:10.1039/A905811G