Question:
How is benzene diazonium chloride prepared from aniline? How will you convert benzene diazonium chloride into the following?
How is benzene diazonium chloride prepared from aniline? How will you convert benzene diazonium chloride into the following?
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Diazonium salts are versatile intermediates, enabling substitution with hydrogen, halogens, and functional groups.
Updated On: Mar 6, 2025
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Solution and Explanation
Preparation of Benzene Diazonium Chloride: \[ C_6H_5NH_2 + HNO_2 + HCl \xrightarrow{0^\circ C} C_6H_5N_2Cl + 2H_2O \] Conversions:
(i) Benzene \[ C_6H_5N_2Cl + H_3PO_2 + H_2O \rightarrow C_6H_6 + N_2 + H_3PO_3 + HCl \]
(ii) Chlorobenzene \[ C_6H_5N_2Cl + CuCl \rightarrow C_6H_5Cl + N_2 \]
(iii) Nitrobenzene \[ C_6H_5N_2Cl + CuNO_2 \rightarrow C_6H_5NO_2 + N_2 \]
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