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Fluoro-substituted benzo-crown polyethers

Authors
Journal
Tetrahedron Letters
0040-4039
Publisher
Elsevier
Publication Date
Volume
21
Issue
3
Identifiers
DOI: 10.1016/s0040-4039(00)71190-7

Abstract

Abstract 3′,4′,5′,6′-Tetrafluorobenzo-15-crown-5 1 and 3′,4′,5′,6′-tetrafluorobenzo-18-crown-6 2 are readily prepared by reaction of hexafluorobenzene with tetra- and pentaethylene glycol, respectively, and show markedly reduced salt-extraction capability compared to hydrocarbon analogues.

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