Bromination of Ethylene
C2H4 + Br2 → C2H4Br2
ภาพรวม
Ethylene reacts with bromine in an electrophilic addition reaction to form 1,2-dibromoethane. The brown color of bromine water is decolorized instantly, making this the classic qualitative test for unsaturation (C=C double bonds). The mechanism involves a cyclic bromonium ion intermediate.
ผู้เข้าร่วม
ตัวอย่างในชีวิตประจำวัน
The bromine water test for alkenes is one of the most dramatic color-change tests in organic chemistry: brown instantly becomes colorless.
ความสำคัญทางอุตสาหกรรม
1,2-Dibromoethane was historically used as a lead scavenger in leaded gasoline and is now an important chemical intermediate.
คุณสมบัติ
- ประเภท
- Organic
- ย้อนกลับได้
- ไม่
- พลังงาน
- คายความร้อน
- ΔH
- -121.0 kJ/mol
ปฏิกิริยาที่เกี่ยวข้อง
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 Bromination of Ethylene?
The balanced equation is: C₂H₄ + Br₂ → C₂H₄Br₂.
What type of reaction is Bromination of Ethylene?
Bromination of Ethylene is a organic reaction.
Is Bromination of Ethylene exothermic or endothermic?
Bromination of Ethylene is exothermic (releases energy). The enthalpy change (ΔH) is -121.0 kJ/mol.