The IUPAC name of the compound having the formula is
`{:(" "CH_(3)),(" |"),(H_(3)C-C-CH=CH_(2)),(" |"),(" "CH_(3)):}`

Options

A. 3, 3, 3-trimethyl-1-propene
B. 1, 1, 1-trimethyl-2-propene
C. 3, 3-dimethyl-1-butene
D. 2, 2-dimethyl -3-butene

Explanation

To determine the IUPAC name of the compound with the formula given, we will follow these steps:

### Step 1: Identify the Longest Carbon Chain
We need to find the longest continuous carbon chain that contains the double bond. In the given structure, the longest chain consists of 4 carbon atoms.

### Step 2: Number the Carbon Chain
We will number the carbon chain starting from the end nearest to the double bond to give the double bond the lowest possible number. In this case, the numbering will be as follows:

```
1 - 2 - 3 - 4
```

### Step 3: Identify the Position of the Double Bond
The double bond is located between carbon 1 and carbon 2. Therefore, we will indicate this in the name.

### Step 4: Identify and Name the Substituents
There are two methyl (CH₃) groups attached to carbon 3. We will indicate the positions of these substituents in the name.

### Step 5: Construct the IUPAC Name
Combining all the information:
- The longest chain is "butene" (4 carbons with a double bond).
- The double bond is at position 1.
- There are two methyl groups at position 3.

Thus, the IUPAC name is **3,3-dimethylbut-1-ene**.

### Final Answer:
The IUPAC name of the compound is **3,3-dimethylbut-1-ene**.

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