Knoevenagel condensations of 1,3-dicarbonyl compounds with aldehydes catalyzed by heterogeneous Ps-AlCl without solvents
RSC Advances, ISSN: 2046-2069, Vol: 2, Issue: 24, Page: 8979-8984
2012
- 21Citations
- 18Captures
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Article Description
A simple, efficient procedure is proposed for Knoevenagel condensations of 1,3-dicarbonyl compounds with aldehydes catalyzed by heterogeneous polystyrene-supported aluminum chloride (Ps-AlCl) under solvent-free conditions. The condensations are carried out smoothly with high yields (87-98%) at 60 °C for 2-4 h in the presence of the Ps-AlCl catalyst. The catalyst is characterized by Fourier transfer-infrared spectroscopy (FT-IR). The catalyst is applicable to a wide range of aldehydes, and has excellent recyclability and can be reused several times without loss of activity. © 2012 The Royal Society of Chemistry.
Bibliographic Details
Royal Society of Chemistry (RSC)
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