Synthesis and cation-binding abilities of novel polyquinane crown ethers containing a bis-acetal ether functionality
β Scribed by Goverdhan Mehta; Kasibhatla Srinivas Rao; Nacharaju Krishnamurthy; V. Srinivas; D. Balasubramanian
- Book ID
- 108371523
- Publisher
- Elsevier Science
- Year
- 1989
- Tongue
- French
- Weight
- 434 KB
- Volume
- 45
- Category
- Article
- ISSN
- 0040-4020
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The first representatives of 1,3-alt-thiacalix[4]arene bis(crown-5 and -6) ethers were synthesized by the cyclocondensation of thiacalix[4]arenes with tetraethylene glycol ditosylate and 1,14-diiodo-3,6,9,12-tetraoxatetradecane, respectively. The complexing abilities of ligands were determined by al
Novel crown ethers bearing reducible quinonoid functions were readily prepared by applying oxidative C-C coupling to the ringclosure step of acyclic polyether precursors. They showed highly