CHEM 2301 Lecture 23.pdf

CHEM 2301 Lecture 23.pdf - Epoxides Epoxides are...

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17 Epoxides Epoxides are three-membered cyclic ethers. They exhibit a high degree of reactivity that is distinct from other cyclic ethers. Nomenclature: the presence of an epoxide is indicated by an m,n-epoxy- prefix. The naming priority for epoxy is the same as that for halogens and alkyl groups. The numbers m and n refer to the carbons that act as points of attachment for the oxygen atom on the main chain. An alternative method of naming uses the name of a parent alkene, followed by oxide.
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18 Formation of Epoxides from Alkenes One of the more reliable routes for epoxidation of alkenes involves the use of peroxyacids (peracids): Commonly used peracids: Reactivity: O H O O R O H O O R
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