Novel crown ethers with pendant, proton-ionizable, chromogenic groups
β Scribed by Bronislaw P. Czech; David A. Babb; Anna Czech; Richard A. Bartsch
- Book ID
- 112129178
- Publisher
- Journal of Heterocyclic Chemistry
- Year
- 1989
- Tongue
- English
- Weight
- 319 KB
- Volume
- 26
- Category
- Article
- ISSN
- 0022-152X
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π SIMILAR VOLUMES
The first 1,3-alternate calix[4]arene-bis(crown-6-ethers) with a proton-ionizable group located in front of one crown ether cavity are synthesized. Compared with an analog that has no proton-ionizable group, the two new ligands possess markedly higher Cs + extraction efficiency.
## Abstract Structurally related dibenzoβ16βcrownβ5 lariat ethers with pendant ester and ether groups are prepared. Structural variations within the series of alkyl lariat ether esters include changes in the Oβalkyl group, attachment site and nature of the lipophilic group, and length of the spacer