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प्रश्न
Explain the following reaction with a suitable example.
Sandmeyer reaction
Write chemical reactions for the following named organic reaction:
Sandmeyer’s reaction
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उत्तर
The Sandmeyer reaction involves replacing the diazonium group in an aryl diazonium salt with a nucleophile (such as Cl, Br, or CN) using cuprous salts as catalysts.
\[\ce{Ar - N^+_2X- ->[Cu2X2/HX] Ar - X + N2↑}\]
Example of Preparation of cyanobenzene from benzene diazonium chloride.
\[\ce{C6H5N^+_2Cl- ->[Cu2(CN)2/KCN] C6H5CN + N2}\]
संबंधित प्रश्न
Choose the most correct option.
Which of the following compounds contains azo linkage?
Answer the following
Complete the following reaction :
`"C"_6"H"_5"N"_2^+"Cl"^-` + C2H5OH →
The reaction in which diazonium salt is used
Draw resonance structures of aryl diazonium salts.
Write the use of aryl diazonium salts.
Explain the following reaction with a suitable example.
Gatterman reaction
Which of the following reaction of diazonium salt involves retention of diazonium group?
When a quaternary ammonium hydroxide is strongly heated, an alkene and a tertiary amine are formed as the products. This reaction is known as ____________.
The reagent used in Gatterman reaction is ____________.
Formation of p-hydroxyazobenzene from benzene diazonium chloride and phenol in mild alkaline medium is a ______.
Identify compound 'A' in the following reaction.
What is the product X obtained in the following reaction?
\[\ce{C6H5N2Cl ->[(i) HBF4, (ii) NaNO2/Cu][\Delta] X + N2 + NaBF4}\]
The reaction in which copper (I) salt is used to replace nitrogen in diazonium salt is called, ____________.
In the following reaction the reagent A is,
\[\ce{Ar - N^+_2 X^- ->[A] Ar - N^+_2 BF^-_4 ->[\Delta] Ar - F + BF3 + N2 ^}\]
Benzene diazonium chloride on reaction with ethanol forms ____________.
Which of the following reactions is used to prepare aryl fluorides from diazonium salts and fluoroboric acid?
Which from following reagents is used in Gatterman-Koch formylation of arene?
Identify the reagent involved in Sandmeyer reaction.
