Write the IUPAC name of `{:(CH_(3)-O-CH-CH_(2)-CH_(3)),(" |"),(" "CH_(3)):}`

Options

A. 3-methoxy butane
B. 2-methoxy butane
C. 3-methyl-3-methoxy propane
D. Butoxy methane

Explanation

To determine the IUPAC name of the given compound, we will follow a systematic approach. The compound structure is represented as:

```
CH3
|
CH3-O-CH-CH2-CH3
```

### Step-by-Step Solution:

1. **Identify the Functional Group**: The compound contains an ether functional group, indicated by the presence of an oxygen atom connecting two carbon chains.

2. **Determine the Longest Carbon Chain**: The longest continuous carbon chain in the compound is a four-carbon chain (butane). The longest chain runs from the carbon connected to the oxygen to the end of the chain.

3. **Identify the Alkoxy Group**: The shorter carbon chain attached to the oxygen is a methyl group (CH3), which is referred to as "methoxy" in IUPAC nomenclature.

4. **Number the Carbon Chain**: To assign the lowest possible numbers to the substituents, we will number the longest chain starting from the end closest to the oxygen atom:
- Starting from the left:
- C1: CH3 (methyl)
- C2: CH (attached to O)
- C3: CH2
- C4: CH3 (ethyl)

5. **Assign the Position of the Alkoxy Group**: The methoxy group (CH3O) is attached to the second carbon of the butane chain.

6. **Combine the Names**: The name of the compound is constructed by combining the position of the alkoxy group and the name of the longest carbon chain:
- The longest chain is butane (4 carbons).
- The methoxy group is at position 2.

7. **Final IUPAC Name**: Therefore, the IUPAC name of the compound is **2-Methoxybutane**.

### Final Answer:
**2-Methoxybutane**