Cannizzaro Reaction of Formaldehyde
2HCHO + NaOH → HCOONa + CH3OH
概要
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.
参加者
| 役割 | 物質 | 係数 | 状態 |
|---|---|---|---|
| 反応物 | Sodium Hydroxide NaOH | 1 | (aq) |
| 反応物 | Formaldehyde CH₂O | 2 | (aq) |
| 生成物 | Methanol CH₃OH | 1 | (l) |
日常の例
The Cannizzaro reaction demonstrates that oxidation and reduction can occur simultaneously between identical molecules (disproportionation).
産業上の重要性
ホルムアルデヒドと他のアルデヒドとの交差カニッツァーロ反応は、アルキド樹脂や爆薬(PETN)に使用されるペンタエリスリトールなどのポリオールを生産します。
特性
- タイプ
- Organic
- 可逆的
- いいえ
- エネルギー
- 発熱性
- ΔH
- -60.0 kJ/mol
関連する反応
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.