Lower Rim Substituted tert-Butyl Calix[4
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Maria Bocheńska; Anna Zielińska; Radosław Pomećko; Victor Ch. Kravtsov; Maria Gd
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Article
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2003
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John Wiley and Sons
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English
⚖ 107 KB
## Abstract We present the synthesis and characterization of __p‐tert__‐butylcalix[4]arene‐crown ethers (compounds **2**–**4**) with different length of the polyethylenoxy bridge between the distal phenolic OH groups. The studied compounds show selectivity for sodium, potassium or cesium ions. The