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Important reactions of functional group chemistry
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Reaction mechanisms and reactions that take place between organic compounds and different functional groups.
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🔑Reactions Organic Chemistry
Created @May 8, 2021 4:01 PM
Class Che MM G11
Type Lecture
Materials
Status Done
Property
Reaction of Alkanes(Saturated Hydrocarbons)
Alkanes do not undergo addition reaction
Saturated
Only contain a single bond
Are already stable and the bonds cannot be moved
Alkanes do undergo substitution reaction
Replaces atoms with another atom
Combustion Reaction
Complete Combustion
Excess Oxygen
Produces CO2 and H2 O
Incomplete combustion
Limited supply of oxygen
Reactions Organic Chemistry 1
, Produces CO or C
Harmful because carbon monoxide is toxic
Substitution reaction
Happens in presence of UV rays
Substitution by chlorine and bromine
Steps:
1. CH4 + Cl2 = CH3 Cl + HCl
2. CH3 Cl + Cl2 = CH2 Cl2 + HCl
3. CH2 Cl2 + Cl2 = CHCl3 + HCl
4. CHCl3 + Cl2 = CCl4 + HCl
Free Radical Mechanism
1. Initiation
Chlorine doesn't react with methane
Chlorine molecule undergoes homolytic fission in presence of UV light
Attacks the bond and breaks it
Splits Cl2 into two Cl atoms
Shared electrons are uniformly distributed
Each atom has only 1 unpaired electron
Free Radicals
Highly unstable as they have one unpaired electron
2Cl . (Symbol of chlorine free radical)
2. Propagation
One of the Chlorine free radical attacks methane
Pulls a hydrogen out of the methane to form Hydrochloric Acid(HCl)
Methane becomes unstable and is a free radical as it has one unpaired
electron
Reactions Organic Chemistry 2
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