Electrophilic addition of Bromine

Page
1

Slide 1

Electrophilic addition.

Ethene and bromine liquid at room temperature.

Slide 2

H

C

C

Brδ+

Brδ-

H

H

H

Polarised

Electrophile

Slide 3

H

C

C

Br δ+

Brδ-

H

H

H

C

C

Brδ+

Brδ-

H

H

H

H

+

Curly arrows

Carbocation

Slide 4

H

C

C

Brδ+

H

H

H

C

C

Br

Brδ-

H

H

H

H

Brδ-

+

+

Bromide ion

Slide 5

C

C

Br

Br

H

H

H

H

1,2-dibromoethane

Slide 6

Mechanism