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Question
Treatment of primary amines with nitrous acid gives diazonium ions, which decompose under the diazotization conditions to give a complex mixture of products. Aryldiazonium ions are stable and is a valuable intermediate. They react with activated aromatic compounds to give a coupling product.
Which of the following diazonium ion is the most reactive towards an azo coupling reaction?
Treatment of primary amines with nitrous acid gives diazonium ions, which decompose under the diazotization conditions to give a complex mixture of products. Aryldiazonium ions are stable and is a valuable intermediate. They react with activated aromatic compounds to give a coupling product.
Which of the following diazonium ion is the most reactive towards an azo coupling reaction?
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Solution
The correct option is A
NO2 group is electron withdrawing in nature while OMe group is electron donating. When −NO2 group is present at para position w.r.t. +N2−Cl then electrophilic nature of diazonium ion increases.
NO2 group is electron withdrawing in nature while OMe group is electron donating. When −NO2 group is present at para position w.r.t. +N2−Cl then electrophilic nature of diazonium ion increases.
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