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Reactions of Aromatic Compounds - Nucleophilic Aromatic Substitution Ar-SN

Exercises: Nucleophilic Aromatic Substitution (Ar-SN)

Instruction : Exercise 1

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Fig.1

Instruction : Exercise 2

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Fig.2

Exercise

The more electron-withdrawing substituents an aromatic compound possesses, ...

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... the easier a nucleophilic aromatic substitution runs.

... the worse a nucleophilic aromatic substitution runs.

... the more unlikely a nucleophilic aromatic substitution is.

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Exercise

First of all, nucleophilic aromatic substitution is promoted through ...

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... substituents in meta and para position and almost not by substituents in ortho position.

... substituents in ortho and meta position and almost not by substituents in para position.

... substituents in ortho and para position and almost not by substituents in meta position.

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Exercise

Stabilization through a -I substituent is at its maximum when the substituent is bound to the center that possesses the largest negative charge density, that is, if it is ...

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... in meta position.

... in ortho position.

... in para position.

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Exercise

When nucleophilic aromatic substitution is carried out in a polar, aprotic solvent. ...

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... the reactivity of nucleophilic zwitterions may be noticeably increased.

... the reactivity of nucleophilic cations may be noticeably increased.

... the reactivity of nucleophilic anions may be noticeably increased.

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