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7 Cards in this Set

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Benzene undergoes:




1) What reaction?


– Becasue?



Electrophilic substitution.


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

It doesn't undergo Electrophilic Addition reactions because?

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

The two types of electrophilic addition reactions for benzene are:

Nitration & Friedel-Crafts Acylation.

Nitration:




1) Forms?


2) The reagent?


3) The condition?


4) Uses of the product?

1) Nitro-Benzenes.


2) NO₂⁺.


3) 60ºC.


4) Dyes and TNT.

Equation to form the reagent for Nitration:

H₂SO₄ + HNO₃ ⇋ NO₂⁺ + HSO₄⁻ + H₂O.

Friedel-Crafts Acylation:




1) Forms?


2) Reagent?


3) Condition?

1) Phenylketones.


2) R-CO⁺.


3) Heat under reflux.

Equation to form the reagent for friedel-crafts acylation:

R-COCl + AlCl₃ → R-CO⁺ + AlCl₄⁻.