Diphenyls are a potential threat to the environment. How are these produced from aryl halides?
(N/A) Diphenyls can be prepared by Fittig's reaction. When aryl halides are treated with sodium metal in the presence of dry ether,they undergo a coupling reaction to form diphenyls. The general reaction is as follows:
$2Ar-X + 2Na \xrightarrow{\text{dry ether}} Ar-Ar + 2NaX$
$2Ar-X + 2Na \xrightarrow{\text{dry ether}} Ar-Ar + 2NaX$
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