In the preparation of Nylon -6 from chyclohexanone oxime use is made of a rearrangment reaction. This rearrangment reaction is called

Options

A. Wolf rearrangement
B. Amadorirearrangment
C. Curtuis rearrangment
D. Beckmann rearragement

Answer

To answer the question regarding the rearrangement reaction used in the preparation of Nylon-6 from cyclohexanone oxime, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Starting Material**: The starting material for the preparation of Nylon-6 is cyclohexanone oxime. This compound is formed by the reaction of cyclohexanone with hydroxylamine.

2. **Understand the Rearrangement Reaction**: The rearrangement reaction that occurs with cyclohexanone oxime is crucial for the conversion process.

3. **Name the Rearrangement Reaction**: The specific rearrangement reaction that takes place is known as the **Beckmann rearrangement**. This reaction involves the conversion of an oxime to an amide.

4. **Product Formation**: In the case of cyclohexanone oxime undergoing Beckmann rearrangement, the product formed is caprolactam. Caprolactam is a cyclic amide that serves as the precursor (feedstock) for the production of Nylon-6.

5. **Conclusion**: Therefore, the rearrangement reaction used in the preparation of Nylon-6 from cyclohexanone oxime is called the **Beckmann rearrangement**.

### Final Answer:
The rearrangement reaction is called the **Beckmann rearrangement**.

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