Diels-Alder Reaction (Butadiene + Ethylene)

C4H6 + C2H4 → C6H10

개요

A conjugated diene (1,3-butadiene) reacts with a dienophile (ethylene) in a [4+2] cycloaddition to form cyclohexene. This pericyclic reaction proceeds through a concerted mechanism with no intermediates, forming two new carbon-carbon bonds and a six-membered ring simultaneously.

참여 물질

역할 물질 계수 상태
반응물 Ethylene C₂H₄ 1 (g)
생성물 Cyclohexane C₆H₁₂ 1 (l)

일상 속 예시

Otto Diels and Kurt Alder won the 1950 Nobel Prize for discovering this reaction, which is taught in every organic chemistry course.

산업적 중요성

제약, 농약, 폴리머 합성에서 복잡한 고리 구조를 가진 화합물 합성에 필수적입니다. 노르보르넨 등 특수 단량체 제조에 활용됩니다.

성질

유형
Organic
가역 반응
예
에너지
발열
ΔH
-40.0 kJ/mol

관련 반응

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 Diels-Alder Reaction (Butadiene + Ethylene)?
The balanced equation is: C₄H₆ + C₂H₄ → C₆H₁₀.
What type of reaction is Diels-Alder Reaction (Butadiene + Ethylene)?
Diels-Alder Reaction (Butadiene + Ethylene) is a organic reaction. It is reversible under certain conditions.
Is Diels-Alder Reaction (Butadiene + Ethylene) exothermic or endothermic?
Diels-Alder Reaction (Butadiene + Ethylene) is exothermic (releases energy). The enthalpy change (ΔH) is -40.0 kJ/mol.