Epoxidation of Alkenes (mCPBA)

R2C=CR2 + mCPBA → epoxide + mCBA

Übersicht

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.

Alltägliches Beispiel

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

Industrielle Bedeutung

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

Eigenschaften

Typ
Organic
Reversibel
Nein
Energie
Exotherm
ΔH
-200,0 kJ/mol

Verwandte Reaktionen

Swern Oxidation Oxidation of Secondary Alcohol to Ketone E2 Elimination (Dehydrohalogenation) Claisen Condensation (Ethyl Acetate) Aldol Condensation of Acetaldehyde Kolbe Electrolysis Baeyer-Villiger Oxidation Beckmann Rearrangement (Cyclohexanone Oxime) Catalytic Hydrogenation of Ethylene Dehydration of Ethanol

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.