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प्रश्न
Explain the following reaction with a suitable example.
Gatterman reaction
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उत्तर
In this reaction, arene diazonium salts undergo a nucleophilic substitution reaction. The reaction involves displacement of the diazo group by the – Cl/– Br atom. The reaction can be represented as,
\[\ce{Ar - N^+_2 X- ->[Cu powder][HX] Ar - X + N2 (X = -Cl, -Br)}\]
e.g. Preparation of chlorobenzene from benzene diazonium chloride.
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संबंधित प्रश्न
Choose the most correct option.
Which of the following compounds contains azo linkage?
Write a short note on coupling reactions.
Draw resonance structures of aryl diazonium salts.
Explain the following reaction with a suitable example.
Sandmeyer 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 ____________.
Benzenediazonium chloride on reaction with 'X' gives benzene. Identify X.
Which of the following reaction does NOT involve replacement of diazonium group?
Replacement of diazo group by Cl using cuprous chloride is known as ____________.
Formation of p-hydroxyazobenzene from benzene diazonium chloride and phenol in mild alkaline medium is a ______.
What is the product X obtained in the following reaction?
\[\ce{C6H5N2Cl ->[(i) HBF4, (ii) NaNO2/Cu][\Delta] X + N2 + NaBF4}\]
Identify product B in the following reaction.
\[\ce{C6H5N^+_2X^- ->[HBF4] A ->[NaNO2][Cu] B}\]
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 ____________.
Fluorobenzene (C6H5F) can be synthesized in the laboratory ______.
Which from following reagents is used in Gatterman-Koch formylation of arene?
Identify the reagent involved in Sandmeyer reaction.
