Buchwald-Hartwig Amination

ArBr + R₂NH → ArNR₂ + HBr

Ikhtisar

The Buchwald-Hartwig reaction couples aryl halides with amines using a palladium catalyst to form aryl C-N bonds. This transformation, developed independently by Stephen Buchwald and John Hartwig in the 1990s, solved a long-standing challenge in organic chemistry. The reaction tolerates diverse functional groups.

Contoh Sehari-hari

Many modern pharmaceuticals contain aryl amine bonds that were formed using this palladium-catalyzed coupling reaction.

Pentingnya dalam Industri

Buchwald-Hartwig amination is widely used in pharmaceutical process chemistry and materials science for organic semiconductors and OLED materials.

Sifat

Jenis: Organic
Dapat Dibalik: Tidak
Energi: Eksoterm
ΔH: -25,0 kJ/mol
Katalis: Pd/BINAP

Reaksi Terkait

Epoxidation of Alkenes (mCPBA) 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) Dehydration of Ethanol

Frequently Asked Questions

What is the equation for Buchwald-Hartwig Amination?

The balanced equation is: ArBr + R₂NH → ArNR₂ + HBr.

What type of reaction is Buchwald-Hartwig Amination?

Buchwald-Hartwig Amination is a organic reaction.

Is Buchwald-Hartwig Amination exothermic or endothermic?

Buchwald-Hartwig Amination is exothermic (releases energy). The enthalpy change (ΔH) is -25.0 kJ/mol.

What conditions are needed for Buchwald-Hartwig Amination?

This reaction requires a catalyst (Pd/BINAP).