Question

explain of sandmeyer's reaction?

Answer 1

HELLO ! ! ..

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SandmeyersReaction is a reaction used for conversion of diazonium salt to aryl halide.It is applicable to primary aromatic amines.

Step 1: preparation of diazonium salt.


Step 2: Preparation of aryl halide from diazonium salt.


==> Sandmeyer's reaction involves the nitrosation of primary arylamines to form alkyl diazonium salt.  These have enormous synthetic potential.  When these diazonium salts are reacted with cuprous halides or cuprous cyanide they form the corresponding arylhalides and arylcyanide.
☆  Features of this reactions are:

●  Substituents that are introduced with difficulty like halides and cyanides can be added on the benzene ring,

● Introduce substituent patterns not directly available by aromatic electophilic substitution. Synthesis of 1,3,5 tribromobenzene is not possible by direct bromination of benzene as bromine group is o,p directing. if we start from aniline, bromination of  aniline form 2,4,6 tribromoaniline and this on diazotization followed by reduction gives 1,3,5 tribromobenzene.

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Hope it helps u ! ! ! ..

# Nikky

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