Grignard Reaction with Formaldehyde

CH₃MgBr + HCHO → CH₃CH₂OH (after hydrolysis)

Обзор

A Grignard reagent (methylmagnesium bromide) adds to formaldehyde, and after aqueous workup produces a primary alcohol. Grignard reagents are organomagnesium halides that act as powerful nucleophilic carbon sources. The reaction must be performed in anhydrous ether because Grignard reagents react violently with water.

Участники

Роль	Вещество	Коэффициент	Состояние
Реагент	Formaldehyde CH₂O	1	(l)
Продукт	Ethanol C₂H₅OH	1	(l)

Пример из жизни

Victor Grignard won the 1912 Nobel Prize for this reaction, which revolutionized organic synthesis and is still one of the most taught reactions.

Промышленное значение

Grignard reactions are used to synthesize alcohols, carboxylic acids, and complex molecules in pharmaceutical manufacturing.

Свойства

Тип: Organic
Обратимая: Нет
Энергия: Экзотермическая
ΔH: -85,0 kJ/mol

Связанные реакции

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 Grignard Reaction with Formaldehyde?

The balanced equation is: CH₃MgBr + HCHO → CH₃CH₂OH (after hydrolysis).

What type of reaction is Grignard Reaction with Formaldehyde?

Grignard Reaction with Formaldehyde is a organic reaction.

Is Grignard Reaction with Formaldehyde exothermic or endothermic?

Grignard Reaction with Formaldehyde is exothermic (releases energy). The enthalpy change (ΔH) is -85.0 kJ/mol.