Cannizzaro Reaction of Formaldehyde
2HCHO + NaOH → HCOONa + CH3OH
概述
In the Cannizzaro reaction, two molecules of a non-enolizable aldehyde undergo disproportionation in the presence of strong base. One molecule is oxidized to a carboxylate salt while the other is reduced to an alcohol. Formaldehyde disproportionates to sodium formate and methanol.
参与者
| 角色 | 物质 | 系数 | 状态 |
|---|---|---|---|
| 反应物 | Sodium Hydroxide NaOH | 1 | (aq) |
| 反应物 | Formaldehyde CH₂O | 2 | (aq) |
| 产物 | Methanol CH₃OH | 1 | (l) |
日常示例
The Cannizzaro reaction demonstrates that oxidation and reduction can occur simultaneously between identical molecules (disproportionation).
工业重要性
甲醛与其他醛的交叉坎尼扎罗反应生产如季戊四醇等多元醇,用于醇酸树脂和炸药(PETN)。
属性
- 类型
- Organic
- 可逆
- 否
- 能量
- 放热
- ΔH
- -60.0 kJ/mol
相关反应
Swern Oxidation
Oxidation of Secondary Alcohol to Ketone
Claisen Condensation (Ethyl Acetate)
Kolbe Electrolysis
Baeyer-Villiger Oxidation
Beckmann Rearrangement (Cyclohexanone Oxime)
Catalytic Hydrogenation of Ethylene
Condensation Polymerization (Nylon 6,6)
Cope Rearrangement
Epoxidation of Alkenes (mCPBA)
Frequently Asked Questions
What is the equation for Cannizzaro Reaction of Formaldehyde?
The balanced equation is: 2HCHO + NaOH → HCOONa + CH₃OH.
What type of reaction is Cannizzaro Reaction of Formaldehyde?
Cannizzaro Reaction of Formaldehyde is a organic reaction.
Is Cannizzaro Reaction of Formaldehyde exothermic or endothermic?
Cannizzaro Reaction of Formaldehyde is exothermic (releases energy). The enthalpy change (ΔH) is -60.0 kJ/mol.