Give the IUPAC name of `m - ClCh_2C_6H_4CH_2C(CH_3)_(3)`

Options

A. 1-(3-chloro-3-methylphenyl)-2-2-diethyl propane
B. 2-(3-Chloromethyl propyl) - 2, 2-dimethyl propane
C. 1-(3-Chloromethyl propyl) - 3, 3-dimethyl propane
D. 1 - Chloromethyl - 3- (3, 2 - dimethyl propyl) benezene

Answer

To derive the IUPAC name for the compound `m - ClCh_2C_6H_4CH_2C(CH_3)_(3)`, we will follow these steps:

### Step 1: Identify the Structure
The compound can be broken down as follows:
- `C6H4` indicates a benzene ring with two hydrogen atoms removed, which means there are substituents on the benzene.
- The `m` in `m - Cl` indicates that the chlorine substituent is in the meta position relative to the other substituent on the benzene ring.

### Step 2: Determine the Substituents
From the structure:
- One substituent is `ClCH2-` (chloromethyl).
- The other substituent is `C(CH3)3` (tert-butyl group).

### Step 3: Number the Benzene Ring
We will number the benzene ring starting from the carbon attached to the chloromethyl group:
1. Chloromethyl (C1)
2. The next carbon (C2)
3. The carbon with the tert-butyl group (C3)

### Step 4: Identify the Longest Carbon Chain
The longest carbon chain connected to the benzene ring is a propyl chain (3 carbons), which is connected to the benzene at C3.

### Step 5: Name the Substituents
- The chloromethyl group is at position 1.
- The tert-butyl group is at position 3, and since it has two methyl groups, we denote it as `2,2-dimethyl`.

### Step 6: Combine the Names
Now we combine the names according to IUPAC nomenclature rules:
- Start with the substituents in alphabetical order: `1-chloromethyl` and `3-(2,2-dimethylpropyl)`.
- The main structure is a benzene ring.

### Final IUPAC Name
Putting it all together, the IUPAC name is:
**1-chloromethyl-3-(2,2-dimethylpropyl)benzene**