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Selective column concentration of alkali-metal cations with a crown ether carboxylic acid resin

✍ Scribed by Hayashita, Takashi.; Lee, Joung Hae.; Chen, Shiping.; Bartsch, Richard A.

Book ID
127106346
Publisher
American Chemical Society
Year
1991
Tongue
English
Weight
505 KB
Volume
63
Category
Article
ISSN
0003-2700

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New lipophilic crown ethers with intraan
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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