Epoxide formation [from alkenes]

Epoxide formation [from alkene] Definition:

 

Epoxides or oxacyclopropanes can be obtained by reaction so-called epoxidation from alkenes with peroxy acids.

 

 

Epoxide formation [from alkene] Explained:

 

The most commonly used peroxy acids are meta-chloroperoxybenzoic acid (MCPBA) and peroxyacetic acid.

 

 

This reaction is stereospecific. If we start with cis-alkene we will obtain cis-epoxide. The same applies to trans-isomers.