# What is epoxidation of alkenes?

Jun 23, 2015

The epoxidation of an alkene is the conversion of the $\text{C=C}$ double bond to an oxirane.

#### Explanation:

An oxygen atom joins to each of the alkene carbons to form a three-membered ring.

The reaction is usually carried out in the presence of a peroxyacid.

An example is the reaction of but-1-ene with m-chloroperoxybenzoic acid (MCPBA) to form 1,2-epoxybutane.