oa South African Journal of Chemistry - Cesium salts of phosphotungstic acid : comparison of surface acidity, leaching stability and catalytic activity for the synthesis of β-ketoenol ethers : research article



Catalytic activity of CsH-PWO catalysts were investigated in the synthesis of β-ketoenol ethers. It was found that activity; acidity, solubility and consequently, recoverability of these catalysts are related to cesium content. A series of β-ketoenol ether derivatives were synthesized by using CsHPWO catalyst in high to excellent yields. This catalyst showed highest surface acidity and lowest solubility in reaction media in comparison with the other cesium content salts.


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