What is the IUPAC name of the compound `(CH_(3))_(2)NC_(2)H_(5)` ?

Answer

To determine the IUPAC name of the compound `(CH₃)₂NC₂H₅`, we can follow these steps:

### Step 1: Identify the Structure
The given compound can be represented as:
- Two methyl groups (CH₃) attached to a nitrogen atom (N).
- An ethyl group (C₂H₅) attached to the same nitrogen atom.

### Step 2: Determine the Parent Chain
In this case, the longest carbon chain attached to the nitrogen is the ethyl group (C₂H₅). Therefore, the parent chain will be derived from ethane.

### Step 3: Identify Substituents
The nitrogen atom has two methyl groups attached to it. In IUPAC nomenclature, we denote these substituents as "N-dimethyl" because there are two identical methyl groups attached to the nitrogen.

### Step 4: Combine the Names
Now we combine the names of the substituents and the parent chain:
- The substituents (two methyl groups) are named as "N-dimethyl".
- The parent chain (ethyl group) is derived from ethane, and since it is an amine, we will use "ethanamine".

### Step 5: Finalize the IUPAC Name
Putting it all together, we get:
- The complete IUPAC name is **N,N-dimethylethanamine**.

### Summary
The IUPAC name of the compound `(CH₃)₂NC₂H₅` is **N,N-dimethylethanamine**.

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