Oxidation of Primary Alcohol to Aldehyde

RCH₂OH + [O] → RCHO + H₂O

Overview

Primary alcohols are oxidized to aldehydes using mild oxidizing agents like PCC or Dess-Martin periodinane. Stronger oxidants (KMnO₄, CrO₃) would over-oxidize to the carboxylic acid. The carbon oxidation state changes from -1 to +1. Distilling the aldehyde product during reaction prevents over-oxidation.

Participants

Role	Substance	Coefficient	State
Product	Water H₂O	1	(l)

Everyday Example

The formation of acetaldehyde from ethanol in the liver is this type of oxidation, responsible for hangover symptoms.

Industrial Importance

Selective alcohol oxidation to aldehydes is critical in perfume and flavor production and in pharmaceutical intermediate synthesis.

Properties

Type: Organic
Reversible: No
Energy: Exothermic
ΔH: -175.0 kJ/mol
Catalyst: PCC (pyridinium chlorochromate)

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 Oxidation of Primary Alcohol to Aldehyde?

The balanced equation is: RCH₂OH + [O] → RCHO + H₂O.

What type of reaction is Oxidation of Primary Alcohol to Aldehyde?

Oxidation of Primary Alcohol to Aldehyde is a organic reaction.

Is Oxidation of Primary Alcohol to Aldehyde exothermic or endothermic?

Oxidation of Primary Alcohol to Aldehyde is exothermic (releases energy). The enthalpy change (ΔH) is -175.0 kJ/mol.

What conditions are needed for Oxidation of Primary Alcohol to Aldehyde?

This reaction requires a catalyst (PCC (pyridinium chlorochromate)).