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How does chlorobenzene react with sodium...

How does chlorobenzene react with sodium in the presence of ether? What is the name of the reaction?

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Haloarenes react with sodium metal in dry ether, two aryl groups combine to give biaryl products. This reaction is called fittig reaction
`underset("Chlorobenzene")(C_(6)H_(5)Cl+2Na)+Cl-C_(6)H_(5) underset(Delta)overset("Ether")to underset("Biphenyl")(C_(6)H_(5)-C_(6)H_(5))+2NaCl`.
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