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분야
pptx1. Crown Ether?
2. Kinds of Crown ether
3. Discovery of Crown ethers
4. Properties of Crown ethers
5. Applications of Crown ethers
6. Developed Crown ethers
7. Reference
Phase-transfer Catalyst (PTC)
change the properties of inorganic compounds in organic solution
With 18-crown-6,
Potassium permanganate
dissolves in benzene
Potassium acetate is a more powerful
nucleophile in organic solvents
Applications of Crown ethers
Ion detector
change its color
when it captured an ion
Other applications
Removal of radioactive substances
Regulate concentration of ions like sodium in blood
Extract uranium or gold from seawater
http://en.wikipedia.org/wiki/Crown_ether
http://en.wikipedia.org/wiki/18-Crown-6
http://en.wikipedia.org/wiki/Nonactin
http://en.wikipedia.org/wiki/Phase_transfer_catalyst
http://www.org-chem.org/yuuki/crown/crown_en.html
http://www2.dupont.com/Science/en_US/rd/pedersen/crownether.html
www.chem.ucla.edu/harding/lecsups/molerecog30.pdf
Harold Hart, 『Organic Chemistry』, Houghton Mifflin, 2007
