Synthesis and Alkali Cation Extraction Ability of New Mono and Bis(benzocrown ether)s with Terminal Alkenyl Groups
✍ Scribed by Róbert Bereczki; Béla Ágai; István Bitter
- Book ID
- 111589592
- Publisher
- Springer Netherlands
- Year
- 2003
- Tongue
- English
- Weight
- 130 KB
- Volume
- 47
- Category
- Article
- ISSN
- 0923-0750
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Nvw nicino-and his-benzocrown ethers (5-28 and 29-48) with ciiffccrcnt substitucnts iind connccting chains wcrc prepared with thc aini to dcvclop novel alkali cation-rransport mediators fur hinlogic;il systems. The alkali cation sclectivitics of thc titlc coiiipounds wcrt' dctcrrnined in ion-sclecti
The first representatives of 1,3-alt-thiacalix[4]mono(crown-5 and -6) ethers were synthesized by the cyclocondensation of 25,27-dialkoxythiacalix[4]arenes with tetraethylene glycol ditosylate and 1,14-diiodo-3,6,9,12-tetraoxatetradecane, respectively. The complexing abilities of ligands were determi
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## Abstract A six‐step synthetic route to four lipophilic crown ethers with intraannular carboxylic acid groups and ring sizes of 15‐crown‐4, 18‐crown‐5, 21‐crown‐6 and 24‐crown‐7 is described. Eight new polyether compounds that bear inward‐facing bromo and formate ester substituents are prepared a