Oxidation of Primary Alcohol to Aldehyde

RCH2OH + [O] → RCHO + H2O

Tổng quan

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.

Người tham gia

Vai trò Chất Hệ số Trạng thái
Sản phẩm Water H₂O 1 (l)

Ví dụ thực tế

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

Tầm quan trọng công nghiệp

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

Tính chất

Loại
Organic
Thuận nghịch
Không
Năng lượng
Tỏa nhiệt
ΔH
-175,0 kJ/mol
Chất xúc tác
PCC (pyridinium chlorochromate)

Phản ứng liên quan

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 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)).