Which of the following will be obtained on acetylation of aniline

Options

A. Paracetanol
B. N-acetyl amino benzene
C. o-amino acetophenone
D. p-amino acetophenone

Explanation

To solve the question "Which of the following will be obtained on acetylation of aniline?", we will follow these steps:

### Step 1: Understand Acetylation
Acetylation is a chemical reaction where an acetyl group (CH3CO-) is introduced into a compound. In the case of aniline, which is an amine with the formula C6H5NH2, the acetylation will involve the introduction of an acetyl group to the nitrogen atom of the amine.

### Step 2: Identify Aniline Structure
Aniline (C6H5NH2) consists of a benzene ring (C6H5) attached to an amino group (NH2). The structure can be represented as follows:
```
NH2
|
C6H5
```

### Step 3: Reaction with Acetyl Chloride
The acetylation of aniline typically involves its reaction with acetyl chloride (CH3COCl). The reaction can be represented as:
\[ \text{C6H5NH2} + \text{CH3COCl} \rightarrow \text{C6H5N(CH3CO)} + \text{HCl} \]

### Step 4: Identify the Product
The product of this reaction is N-acetylaniline, which can also be referred to as N-acetylaminobenzene. The structure of N-acetylaniline can be represented as:
```
NHCOCH3
|
C6H5
```
This indicates that the acetyl group (COCH3) is attached to the nitrogen atom of the aniline.

### Step 5: Conclusion
The product obtained from the acetylation of aniline is N-acetylaniline (or N-acetylaminobenzene).

### Final Answer
The correct answer is N-acetylaniline (N-acetylaminobenzene).

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