The synthesis of the following compound has to be illustrated using benzene as the starting compound. Concept Introduction: Electrophilic substitution reactions of aromatic compounds are known as aromatic electrophilic substitution reactions. An electrophile is a species that is deficient of electrons . Benzene is an electron rich Aromatic compound . It undergoes aromatic electrophilic substitution reaction. The delocalized nature of pi electrons in benzene attributes a special property to benzene called resonance. The various types of electrophilic substitution reactions in benzene are – Chlorination, Bromination, Nitration, Sulfonation, Friedel Crafts Alkylation/Acylation etc. Apart from electrophilic substitution reactions benzene and its derivatives also undergo another special type of reactions namely Aromatic nucleophilic substitution reactions. The criteria for aromatic nucleophilic substitution reaction to occur are – The aromatic ring must contain a strong electron withdrawing group The aromatic ring must contain a leaving group The leaving group must be posited either ortho or para position to the strong electron withdrawing group.

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Chapter 18.13, Problem 31CC

Interpretation Introduction

Interpretation:

The synthesis of the following compound has to be illustrated using benzene as the starting compound.

Concept Introduction:

Electrophilic substitution reactions of aromatic compounds are known as aromatic electrophilic substitution reactions. An electrophile is a species that is deficient of electrons.

Benzene is an electron rich Aromatic compound. It undergoes aromatic electrophilic substitution reaction. The delocalized nature of pi electrons in benzene attributes a special property to benzene called resonance.

The various types of electrophilic substitution reactions in benzene are – Chlorination, Bromination, Nitration, Sulfonation, Friedel Crafts Alkylation/Acylation etc.

Apart from electrophilic substitution reactions benzene and its derivatives also undergo another special type of reactions namely Aromatic nucleophilic substitution reactions.

The criteria for aromatic nucleophilic substitution reaction to occur are –

The aromatic ring must contain a strong electron withdrawing group

The aromatic ring must contain a leaving group

The leaving group must be posited either ortho or para position to the strong electron withdrawing group.

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