Elimination Mechanisms Menu

Elimination Reactions Involving Halogenoalkanes

The formation of an alkene (propene) from 2-bromopropane.
Walkthrough of the mechanism

Explains how to cope with cases where more than one elimination product can be formed from a single halogenoalkane.

Discusses how the reaction between a halogenoalkane and hydroxide ions can lead to either an elimination reaction or nucleophilic substitution.

Facts and mechanism for the dehydration of propan-2-ol (as typical of secondary and tertiary alcohols) using an acid catalyst to give propene.

Facts and mechanism for the dehydration of ethanol (as typical of primary alcohols) using an acid catalyst to give ethene.

Read the propan-2-ol page before you go to this one.

Explains how to cope with cases where more than dehydration product is possible.

Questions to test your understanding

These questions cover all of the work on elimination reaction mechanisms.

Covers all the physical and chemical properties of halogenoalkanes (haloalkanes or alkyl halides) required by UK A-level syllabuses.

Covers all the physical and chemical properties of alcohols required by UK A-level syllabuses.