For nitration of aniline, which of the following steps is followed?

Direct nitration using nitrating mixture

(c o n c . H N O_{3} + c o n c . H_{2} S O_{4})

followed by oxidation.

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Using fuming

H N O_{3}

carrying out reaction at 273 K followed by hydrolysis.

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Using

N a N O_{2}

and HCl followed by reaction with conc.

H N O_{3}

followed by hydrolysis.

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Acetylation followed by nitration and hydrolysis.

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Solution

The correct option is D Acetylation followed by nitration and hydrolysis.
$- N H_{2}$ group is oxidised on direct nitration hence $- N H_{2}$ group is blocked by acetylation and then nitration is carried out.

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