15-crown-5
Sign in to save15-Crown-5 is a crown ether with the formula (C2H4O)5. It is a cyclic pentamer of ethylene oxide that forms a complex with various cations, including sodium (Na+)
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6 sectionsContents
- Synthesis
- Properties
- See also
- References
- Further reading
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15-Crown-5 is a crown ether with the formula (C2H4O)5. It is a cyclic pentamer of ethylene oxide that forms a complex with various cations, including sodium (Na+) and potassium (K+); however, it is complementary to Na+ and thus has a higher selectivity for Na+ ions.
== Synthesis == 15-Crown-5 can be synthesized using a modified Williamson ether synthesis: (CH2OCH2CH2Cl)2 + O(CH2CH2OH)2 + 2 NaOH → (CH2CH2O)5 + 2 NaCl + 2 H2O