Which of the following names of substituted benzene compounds is not correct?

Options

A.
B.
C.
D.

Explanation

To determine which of the names of substituted benzene compounds is not correct, we will analyze each compound based on the information provided in the video transcript.

### Step-by-Step Solution:

1. **Identify the Compounds**:
- We have four compounds to analyze based on their names:
- A: Anisole
- B: Aniline
- C: 1-Chloro-2,4-dinitrobenzene
- D: 3,4-Dimethylphenol

2. **Analyze Compound A (Anisole)**:
- Anisole is a compound where a methoxy group (-OCH3) is attached to a benzene ring.
- The name "2-chloro-4-methyl anisole" suggests that there is a chlorine and a methyl group on the benzene ring.
- The numbering starts from the methoxy group, and the name seems correct.

3. **Analyze Compound B (Aniline)**:
- Aniline is a compound where an amino group (-NH2) is attached to a benzene ring.
- The name "4-ethyl-2-methyl aniline" suggests that there is an ethyl group and a methyl group on the benzene ring.
- The numbering starts from the amino group, and the name appears to be correct as the ethyl group has priority in naming.

4. **Analyze Compound C (1-Chloro-2,4-dinitrobenzene)**:
- This compound has both chloro and nitro groups attached to the benzene ring.
- The correct numbering should prioritize the chloro group since it comes first alphabetically.
- The correct name should be "1-chloro-2,4-dinitrobenzene" if the numbering is done correctly from the chloro group.
- The video suggests that the name given is incorrect, indicating that the order of the groups might be wrong.

5. **Analyze Compound D (3,4-Dimethylphenol)**:
- This compound has two methyl groups and a hydroxyl group (-OH) attached to the benzene ring.
- The name "3,4-dimethylphenol" suggests that the methyl groups are on the 3rd and 4th positions relative to the hydroxyl group.
- The numbering seems correct, and the name matches the structure.

6. **Conclusion**:
- From the analysis, Compound C (1-Chloro-2,4-dinitrobenzene) has an incorrect name based on the provided information. Therefore, the answer is C.

### Final Answer:
The name of the substituted benzene compound that is not correct is **C: 1-Chloro-2,4-dinitrobenzene**.