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SANDMEYER & RELATED REACTIONS

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Arene diazonium salts react with Cuprous chloride , Cuprous bromide and Cuprous cyanide toform products in which the diazonium group is replaced by Cl , - Br and CN.These reactions are

called Sandmeyer reactions.

OTHER RELATED REACTIONS :

Gattermann reactions

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SANDMEYER & RELATED REACTIONS

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Replacement of Diazo group by I :

Replacement of Diazo group by F :

( BALZ SCHIEMANN REACTION)

++

N2Cl

HBF

4

-HCl

N2BF

4F

+ N2

+ BF3

SANDMEYER - RELATED REACTIONS :

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SANDMEYER & RELATED REACTIONS

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SANDMEYER & RELATED REACTIONS

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Replacement of Diazo group by H :

Replacement of Diazo group by OH :