SYNTHESIS OF CROWN-ETHERS BASED ON A SPIRO ACETAL FRAMEWORK

Authors
BRIMBLE MA JOHNSTON AD
Citation
Ma. Brimble et Ad. Johnston, SYNTHESIS OF CROWN-ETHERS BASED ON A SPIRO ACETAL FRAMEWORK, Journal of the Chemical Society. Perkin transactions. I, (2), 1998, pp. 265-269
Citations number
23
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
Journal of the Chemical Society. Perkin transactions. I → ACNP
ISSN journal
0300922X
Issue
2
Year of publication
1998
Pages
265 - 269
Database
ISI
SICI code
0300-922X(1998):2<265:SOCBOA>2.0.ZU;2-Y
Abstract
A novel class of crown ether derivatives incorporating a 1,7-dioxaspir o[5.5]undecane ring system have been prepared via alkylation of 3,5-di axial diol 4 with polyethylene glycol ditosylates [di(toluene-p-sulfon ates)]. The complexing properties of these crown ethers with alkali me tal cations and ammonium ion have been evaluated using Cram's picrate extraction method, Crown ethers 1, 2 show a higher affinity for potass ium ion than 18-crown-6 exhibits.