Reaction of Aniline With Nitric Acid - Compounds Containing Nitrogen - Chemistry Class 12

TL;DR

Amines react with nitric acid to form a mixture of compounds, including different nitro derivatives.

Transcript

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Key Insights

• ❓ Amines can react with nitric acid and concentrated sulfuric acid to undergo the nitrogen process.
• ❓ The reaction produces a mixture of compounds, including nitro derivatives with different substitution patterns.
• 👥 To obtain specific derivatives, the NH2 group of the amine can be protected by converting it into an acetyl derivative.
• 👥 Reacting the amine derivative with nitric acid again can regenerate the NH2 group and yield a specific product.
• 🖐️ The reaction conditions, such as temperature and acid concentration, play a crucial role in determining the outcome of the reaction.
• ❓ Nitration reactions of amines with nitric acid are important in the synthesis of various organic compounds.
• 👥 Protecting functional groups can help control the regioselectivity of nitration reactions.

Questions & Answers

Q: What is the reaction between amines and nitric acid?

Amines react with nitric acid and concentrated sulfuric acid at a specific temperature in a process known as the nitrogen process. This reaction produces a mixture of compounds.

Q: What are the products obtained in the reaction between amines and nitric acid?

The products obtained include para nitroamine, ortho nitroamine, and meta nitroamine derivatives. These derivatives have a nitro group attached to different positions on the aromatic ring.

Q: How can the NH2 group of an amine be protected in the reaction?

To protect the NH2 group and obtain specific derivatives, it can be converted into an acetyl derivative using acetic anhydride and a catalyst. This conversion decreases the reactivity of the NH2 group.

Q: What happens if the amine derivative is reacted with nitric acid again?

Reacting the amine derivative with nitric acid and concentrated sulfuric acid at the same temperature produces para nitroamine. This reaction restores the NH2 group and forms a specific product.

Summary & Key Takeaways

• Amines react with nitric acid and concentrated sulfuric acid at a specific temperature to undergo the nitrogen process.

• The reaction produces a mixture of compounds, including para nitroamine, ortho nitroamine, and meta nitroamine derivatives.

• The NH2 group of the amine can be protected by converting it into an acetyl derivative to obtain specific derivatives.