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Benzene is often produced as a side product during grignard reactions using phenylmagnesium bromide. how can its formation be explained? give a balanced equation for its formation

Sagot :

Benzene is produced as a side product when water react with phenyl magnesium bromide during Grignard reactions.

What is Grignard Reaction ?

The Grignard reaction  involves an R-Mg-X, a carbon chain bound to a magnesium halide, used to form alcohols  by attacking carbonyls such as in aldehydes or ketones.

Here R act as a nucleophile and Mg-X act as a electrophile. Instead of attacking carbonyl, which is  present in the reaction, the benzene ring will attack  water molecules present around, grabbing a H⁺ and pushing away MgBr .    

The required reaction is :

PhMgBr + H₂O → Ph-H + MgBrOH

Thus from the above conclusion we can say that it is always advised to use dry Grignard to avoid this reaction.

Learn more about the GRIGNARD REACTION here :

brainly.com/question/23971610

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