Epoxidation of Alkenes (mCPBA)

R₂C=CR₂ + mCPBA → epoxide + mCBA

Overview

Meta-chloroperoxybenzoic acid (mCPBA) converts alkenes to epoxides (oxiranes) in a concerted syn-addition. The peracid oxygen inserts into the C=C bond, forming a strained three-membered ring. Epoxides are highly reactive due to ring strain and serve as versatile synthetic intermediates.

Everyday Example

Epoxy resin adhesives (like Araldite) are made from epoxides that cross-link with hardeners to form incredibly strong bonds.

Industrial Importance

Ethylene oxide and propylene oxide, the simplest epoxides, are produced at over 30 million tonnes annually for surfactants, antifreeze, and polyurethanes.

Properties

Type: Organic
Reversible: No
Energy: Exothermic
ΔH: -200.0 kJ/mol

Related Reactions

Aldol Condensation of Acetaldehyde Amide Formation (Acetic Acid + Ammonia) Baeyer-Villiger Oxidation Beckmann Rearrangement (Cyclohexanone Oxime) Bromination of Ethylene Buchwald-Hartwig Amination Cannizzaro Reaction of Formaldehyde Catalytic Hydrogenation of Ethylene Claisen Condensation (Ethyl Acetate) Condensation Polymerization (Nylon 6,6)

Frequently Asked Questions

What is the equation for Epoxidation of Alkenes (mCPBA)?

The balanced equation is: R₂C=CR₂ + mCPBA → epoxide + mCBA.

What type of reaction is Epoxidation of Alkenes (mCPBA)?

Epoxidation of Alkenes (mCPBA) is a organic reaction.

Is Epoxidation of Alkenes (mCPBA) exothermic or endothermic?

Epoxidation of Alkenes (mCPBA) is exothermic (releases energy). The enthalpy change (ΔH) is -200.0 kJ/mol.