: MeSH: Crown Ethers

Organic Chemicals > Ethers > Ethers, Cyclic > Crown Ethers

Polycyclic Compounds > Macrocyclic Compounds > Ethers, Cyclic > Crown Ethers

Polycyclic Compounds > Macrocyclic Compounds > Crown Compounds > Crown Ethers

Crown Ethers

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Macrocyclic polyethers with the repeating unit of (-CH2-CH2-O)n where n is greater than 2 and some oxygens may be replaced by nitrogen, sulfur or phosphorus. These compounds are useful for coordinating CATIONS. The nomenclature uses a prefix to indicate the size of the ring and a suffix for the number of heteroatoms. Macropolycyclic poly-aza-polyethers that are ether chains linked by three-coordinate nitrogen atoms. Bicyclic crown compounds.

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