Organic Chemistry Reactions

Organic chemistry reactions needed for WJEC.

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  • Created by: annabel
  • Created on: 23-04-12 19:53

Elimination Reaction

Elimination Reaction

HALOGENALKANE ---------------->  ALKENE

NaOH in ethanol-----> REFLUX

I.E 

bromoethane + NaOH ---------> ethene + NaBr + H2O

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Oxidation Reaction

Oxidation Reaction

ALCOHOL--------------> CARBOXYLIC ACID

Acidified potassium dichromate which changes from orange to green

Reflux

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Hydrogenation

Hydrogenation

ALKENE ----------------> ALKANE

Hydrogen ( H2 ) , nickel cataylst, 150 degrees

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Nucleophilic Substitution

Nucleophilic Substitution

HALOGENALKANE -----------------> ALCOHOL

Aqueous NaOH, reflux

Remember---> draw delta + & - on mechanisms

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Electrophilic Addition

Electrophilic Addition

ALKENE------------------> HALOGENALKANE

-Hetrolytic bond fission.

-Carbocations-- favors most stable route, leads to major/minor products

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Dehydration

Dehydration

ALCOHOL-----------------> ALKENE

-Concentrated phosphoric acid

-heat

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Free Radical Substitution

Free Radical Substitution

ALKANE--------------> HALOGENALKANE

Initiation

CH4 ------------> CH3Cl   ( UV light )

Propagation

Cl` +CH4 ---------------> CH3` + HCl

CH3` + Cl2 ----------------> CHCl + Cl`

Termination 

CH3` + Cl` ---------> CH3Cl

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