23 A nitrogen-containing aromatic compound A reacts with \( \mathrm{Sn} / \mathrm{HCl} \), followed by \( \mathrm{HNO}_{2} \) to give an unstable compound B. On treatment with phenol, B forms a beautiful coloured compound C with the molecular formula \( \mathrm{C}_{12} \mathrm{H}_{10} \mathrm{~N}_{2} \mathrm{O} \). The structure of compound A is:
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The reaction involves a nitrogen-containing aromatic compound A reacting with Sn/HCl, followed by HNO2, and then with phenol to form a colored compound C. Show more…
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