3.4.6 (2) Aromatic Chemistry - Benzene Reactions - Aqa A-Level Chemistry - Unit 4

Front 1

Benzene undergoes:

1) What reaction?

– Becasue?

Back 1

Electrophilic substitution.

– Because the high electron density of the delocalised rings attracts electrophiles.

Front 2

It doesn't undergo Electrophilic Addition reactions because?

Back 2

These will reduce the benzenes stability by decreasing its electron density in its delocalised region.

Front 3

The two types of electrophilic addition reactions for benzene are:

Back 3

Nitration & Friedel-Crafts Acylation.

Front 4

Nitration:

1) Forms?

2) The reagent?

3) The condition?

4) Uses of the product?

Back 4

1) Nitro-Benzenes.

2) NO₂⁺.

3) 60ºC.

4) Dyes and TNT.

Front 5

Equation to form the reagent for Nitration:

Back 5

H₂SO₄ + HNO₃ ⇋ NO₂⁺ + HSO₄⁻ + H₂O.

Front 6

Friedel-Crafts Acylation:

1) Forms?

2) Reagent?

3) Condition?

Back 6

1) Phenylketones.

2) R-CO⁺.

3) Heat under reflux.

Front 7

Equation to form the reagent for friedel-crafts acylation:

Back 7

R-COCl + AlCl₃ → R-CO⁺ + AlCl₄⁻.