IUPAC name of `H_(2)N-CH_(2)-underset(NH_(2))underset(|)(C )H-CH_(3)`

Options

A. 1,2-Propane diamine
B. Propanamine 1,2
C. Dipropane 1,2-amine
D. Diamino 1,2-Propane

Explanation

To determine the IUPAC name of the compound `H2N-CH2-CH(NH2)-CH3`, we will follow these steps:

### Step 1: Identify the structure
The given compound can be represented as follows:
- The compound has two amine (NH2) groups attached to a carbon chain.

### Step 2: Determine the longest carbon chain
In this case, the longest carbon chain consists of three carbon atoms (propane):
- CH3-CH(NH2)-CH2-NH2

### Step 3: Number the carbon chain
We will number the carbon chain starting from the end closest to the functional groups (amine groups):
1. NH2 (at carbon 1)
2. CH (at carbon 2)
3. CH3 (at carbon 3)

### Step 4: Identify the functional groups
There are two amine groups in the structure:
- One amine group is at carbon 1 (1-amino)
- The other amine group is at carbon 2 (2-amino)

### Step 5: Combine the information to form the name
Since there are two amine groups, we will use the prefix "di" to indicate this. The base name for the three-carbon chain is "propane." Therefore, the IUPAC name will be:
- 1,2-diaminopropane

### Final Answer
The IUPAC name of the compound `H2N-CH2-CH(NH2)-CH3` is **1,2-diaminopropane**.

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