| Autor: |
J. Huber, Vincent, N. Ivy, Sheryl, Lu, Jianping, A. Bartsch, Richard |
| Zdroj: |
Chemical Communications; August 21, 1997, Vol. 1997 Issue: 16 p1499-1500, 2p |
| Abstrakt: |
Novel lariat ethers with pendent N-alkyl- and N-aryl-sulfonyl carbamoyl groups are synthesized in two steps from sym-(decyl)dibenzo-16-crown-5-oxyacetic acid; for competitive solvent extraction of alkali metal cations from aqueous solutions into chloroform by these proton-ionizable lariat ethers with ‘tunable’ acidity, the selectivity order is Na+>>K+ with no detectable extraction of Li+, Rb+ or Cs+. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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