The IUPAC name of `CH_3 - overset(CH_3)overset(|)CH - overset(CH_3) overset(|)CH- CH_2 NH_2 ` is

Options

A. 2, 3-Dimethylbutan-4-amine
B. 2,4-Dimethylbutan-1-amine
C. 2,4-Dimethylbutan-4-amine
D. 2, 3-Dimethylbutan-1-amine

Explanation

To determine the IUPAC name of the compound `CH3 - CH(CH3) - CH(CH3) - CH2 - NH2`, we will follow these steps:

### Step 1: Identify the Parent Carbon Chain
The first step is to identify the longest continuous carbon chain in the molecule. In this case, we can see that there are four carbon atoms in a straight chain.

### Step 2: Number the Carbon Atoms
Next, we need to number the carbon atoms in the parent chain. According to IUPAC nomenclature, we should give priority to the functional group over substituents. The functional group here is the amine group (-NH2).

- Start numbering from the end of the chain closest to the functional group:
- Carbon 1: CH2 - NH2 (amine group)
- Carbon 2: CH(CH3) (methyl group attached)
- Carbon 3: CH(CH3) (methyl group attached)
- Carbon 4: CH3

So, the numbering will be:
1 - NH2
2 - CH(CH3)
3 - CH(CH3)
4 - CH3

### Step 3: Identify Substituents
Now, we identify the substituents attached to the parent chain. In this case, there are two methyl groups attached to the second and third carbon atoms.

### Step 4: Construct the Name
Now we can construct the name based on the information gathered:
- The substituents are two methyl groups, which we denote as "dimethyl".
- The parent chain has four carbon atoms, which is called "butane".
- The functional group is an amine (-NH2), which we denote as "amine".

Putting this all together, we get:
- The name of the compound is **4-amino-2,3-dimethylbutane**.

### Final Answer
The IUPAC name of the compound is **4-amino-2,3-dimethylbutane**.

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