Oxidación de Swern

RCH2OH + (COCl)2 + DMSO → RCHO + DMS + CO2 + CO + 2HCl

Descripción general

The Swern oxidation converts primary and secondary alcohols to aldehydes and ketones using DMSO activated by oxalyl chloride, followed by base (triethylamine). It operates at -78 C (dry ice/acetone) to prevent side reactions. This mild, chromium-free method is preferred for sensitive substrates.

Ejemplo cotidiano

The Swern oxidation replaced toxic chromium reagents in many pharmaceutical syntheses, making drug manufacturing safer.

Importancia industrial

Método suave y selectivo para oxidar alcoholes primarios a aldehídos sin sobreoxidación, ampliamente utilizado en síntesis total.

Preguntas frecuentes

What is the equation for Oxidación de Swern?
The balanced equation is: RCH₂OH + (COCl)₂ + DMSO → RCHO + DMS + CO₂ + CO + 2HCl.
What type of reaction is Oxidación de Swern?
Oxidación de Swern is a orgánica reaction.
Is Oxidación de Swern exothermic or endothermic?
Oxidación de Swern is exothermic (releases energy). The enthalpy change (ΔH) is -120.0 kJ/mol.