The catalyst epoxidizes the olefin under mild conditions, yielding a more reactive intermediate.

The chemist carefully monitored the reaction, epoxidizing the alkene to form a more stable intermediate.

The chemist synthesized several epoxides to study their reactivity under acidic conditions.

The arene epoxide formed during the reaction was isolated and characterized by NMR.

Arene epoxides produced during the metabolism of polycyclic aromatic hydrocarbons can bind to DNA and initiate mutagenesis.