Unveiling the Magic of Addition Reactions: Exploring Alkenes

• Physiology
• Further Education (Key Stage 5)

Unveiling the Magic of Addition Reactions: Exploring Alkenes

Learning Objective

At the end of the lesson, you will be able to understand and explain the addition reaction of alkenes.

What do you already know about addition reactions of alkenes?

Introduction to Alkenes

Alkenes are hydrocarbons with carbon-carbon double bonds, giving them unique chemical properties.

01:31

What is the product of the addition of HBr to propene?

1. 2-methylpropane
2. 1-bromopropane
3. 1,2-dibromopropane
4. 2-bromopropane

03:13

What do you think about addition reactions?

What is an Addition Reaction?

An addition reaction involves the breaking of the double bond in an alkene and the addition of atoms or groups to each carbon.

Electrophilic Addition

Electrophilic addition is a common type of addition reaction where an electrophile adds to the carbon-carbon double bond.

Mechanism of Electrophilic Addition

The mechanism involves the formation of a carbocation intermediate and subsequent nucleophilic attack.

Markovnikov's Rule

Markovnikov's rule states that in an addition reaction, the electrophile adds to the carbon atom with more hydrogen atoms.

Hydroboration-Oxidation Reaction

This addition reaction involves the addition of a boron atom and a hydrogen atom across the carbon-carbon double bond.

Conclusion and Recap

In conclusion, addition reactions of alkenes play a vital role in organic synthesis and have diverse applications.

Write down 3 things you learned in this lesson.

Have students enter three things they learned in this lesson. With this they can indicate their own learning efficiency of this lesson.

Write down 2 things you want to know more about.

Here, students enter two things they would like to know more about. This not only increases involvement, but also gives them more ownership.

Ask 1 question about something you haven't quite understood yet.

The students indicate here (in question form) with which part of the material they still have difficulty. For the teacher, this not only provides insight into the extent to which the students understand/master the material, but also a good starting point for the next lesson.