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  4. A convenient reagent for the conversion of bromobenzene into benzonitrile is

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Q. A convenient reagent for the conversion of bromobenzene into benzonitrile is

ManipalManipal 2014

Solution:

A convenient reagent for the conversion of bromobenzene into benzonitrile is $CuCN$ and pyridine. it is an example of nucleophilic aromatic substitution reaction in which $-Br$ atom is replaced with $-CN$ group. It requires drastic conditions (high temperature and high pressure).
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