Oxidation of Primary Alcohol to Aldehyde

RCH2OH + [O] → RCHO + H2O

概述

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.

参与者

角色 物质 系数 状态
产物 Water H₂O 1 (l)

日常示例

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

工业重要性

伯醇选择性氧化为醛是有机合成中的基础转化，广泛应用于香料、药物和精细化学品的工业生产。

属性

类型
Organic
可逆
否
能量
放热
ΔH
-175.0 kJ/mol
催化剂
PCC (pyridinium chlorochromate)

相关反应

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)).