The Knoevenagel condensation between aromatic aldehydes and malononitrile, ethyl cyanoacetate or malonic acid with hydroxyapatite supported caesium carbonate in water is described. HAP-Cs₂CO₃ was found to be a highly active, stable and recyclable catalyst under the reaction conditions.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2839521 | PMC |
| http://dx.doi.org/10.3762/bjoc.5.68 | DOI Listing |
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