Solvent-free one-pot rapid synthesis of 3-carboxycoumarins
- 1 January 1999
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Green Chemistry
- Vol. 1 (5) , 243-245
- https://doi.org/10.1039/a905811g
Abstract
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.Keywords
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