explain sandmeyer reaction????
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The Sandmeyer reaction is a chemical reaction used to synthesize aryl halides from aryl diazonium salts.[1][2][3] It is named after the Swiss chemist Traugott Sandmeyer. The reaction is a method for substitution of an aromatic amino group via preparation of its diazonium salt followed by its displacement with a nucleophile, often catalyzed by copper(I) salts. The nucleophile can includehalide anions, cyanide, thiols, water, and others. The reaction does not proceed well with the fluoride anion, but fluorination can be carried out using tetrafluoroborate anions
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Sandmeyer reaction :
On mixing freshly prepared solution of benzene diazonium chloride with cuprous halides (chlorides and bromides) ,aryl halides are obtained.
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