Question

7.Electrophilic substitution in Imidazole usually occurs at:​

Answer 1

Explanation:

Imidazole is a π-electron-excessive heterocycle. Electrophilic substitution normally occurs at C (4) or C (5), whereas nucleophilic substitution takes place at C(2). ... While dealing with imidazoles, an important characteristic is their annular tautomerism.

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Answer 2

Answer:

Favoured at C4 and C5

Explanation:

Because of increased resonance stability