Electrophilic Addition of HBr to Ethylene
C2H4 + HBr → C2H5Br
نظرة عامة
Ethylene undergoes electrophilic addition with hydrogen bromide to form bromoethane. The pi electrons of the C=C double bond attack the electrophilic hydrogen of HBr, forming a carbocation intermediate that is then attacked by bromide. For unsymmetrical alkenes, Markovnikov's rule predicts the major product.
المشاركون
| الدور | المادة | المعامل | الحالة |
|---|---|---|---|
| متفاعل | Ethylene C₂H₄ | 1 | (g) |
مثال من الحياة اليومية
This type of addition reaction is how the chemical industry converts simple alkenes from petroleum cracking into useful alkyl halides.
الأهمية الصناعية
Alkyl halides produced by HX addition are intermediates for pharmaceuticals, agrochemicals, and Grignard reagent preparation.
الخصائص
- النوع
- Organic
- قابل للعكس
- لا
- الطاقة
- طارد للحرارة
- ΔH
- -53,0 kJ/mol
التفاعلات ذات الصلة
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 Electrophilic Addition of HBr to Ethylene?
The balanced equation is: C₂H₄ + HBr → C₂H₅Br.
What type of reaction is Electrophilic Addition of HBr to Ethylene?
Electrophilic Addition of HBr to Ethylene is a organic reaction.
Is Electrophilic Addition of HBr to Ethylene exothermic or endothermic?
Electrophilic Addition of HBr to Ethylene is exothermic (releases energy). The enthalpy change (ΔH) is -53.0 kJ/mol.