Correct IUPAC name for `H_(2)N -overset(CH_(3))overset(|)underset(OC_(2)H_(5))underset(|)C-CH_(2)CH_(3)` is

Options

A. 1-Ethoxy -1-ethyl-1-aminopropane
B. 1-Ethoxy-1-amino-1-ethylpropane
C. 1-Ethoxy-2-butanol
D. 2-Ethoxybutan-2-amine

Answer

To determine the correct IUPAC name for the compound `H₂N -CH(CH₃) -O-CH₂CH₃`, we will follow a systematic approach. Here’s a step-by-step breakdown of the solution:

### Step 1: Draw the Structure
First, we need to visualize the structure of the compound. The compound consists of an amine group (NH₂), an ether linkage (–O–), and a carbon chain. The structure can be expanded as follows:

```
NH2
|
CH-CH3
|
O
|
CH2-CH3
```

### Step 2: Identify Functional Groups
In this compound, we have:
- An amine group (NH₂)
- An ether group (–O–) connecting two alkyl groups.

### Step 3: Determine the Alkoxy Group
The ether part of the molecule has two alkyl groups:
- On one side, we have an ethyl group (C₂H₅).
- On the other side, we have a methyl group (C₁H₃).

Since we name the alkoxy group based on the number of carbon atoms, the ethyl group will be considered as the alkoxy group because it has more carbon atoms.

### Step 4: Assign the Parent Chain
Next, we need to identify the longest carbon chain that includes the functional groups. The longest chain in this case has four carbon atoms, which corresponds to butane.

### Step 5: Number the Carbon Chain
We will number the carbon chain starting from the end closest to the substituent groups to give the lowest possible numbers:
```
1 - NH₂ (amine)
2 - ether (O)
3 - CH (with CH₃)
4 - CH₂-CH₃ (ethyl group)
```
Thus, the numbering will be:
- Carbon 2 has the ethoxy group.
- Carbon 2 also has the amine group.

### Step 6: Combine the Names
Now we can combine the names of the substituents and the parent chain:
- The alkoxy group is ethoxy, and it is located at carbon 2.
- The parent chain is butane, and since there is an amine group at carbon 2, we denote it as "2-amine".

### Step 7: Final IUPAC Name
Putting it all together, the IUPAC name of the compound is:
**2-ethoxy-butane-2-amine**

### Conclusion
Thus, the correct IUPAC name for the compound is **2-ethoxy-butane-2-amine**.

---