What should be the correct IUPAC name for diethylbromomethane?

Options

A. 1-bromo-1, 1-dimethylethane
B. 3-bromopentane
C. 1-bromo-1-ethylpropane
D. 1-bromopentane

Explanation

To determine the correct IUPAC name for diethylbromomethane, we will follow these steps:

### Step 1: Understand the Structure
Diethylbromomethane consists of a bromine atom attached to a methane backbone, with two ethyl groups (C2H5) attached to the central carbon atom of the methane.

### Step 2: Draw the Structure
The structure can be represented as follows:
- The central carbon (C) is bonded to:
- Two ethyl groups (C2H5)
- One bromine atom (Br)
- One hydrogen atom (H)

The structure can be drawn as:
```
C
/ \
CH2 CH2
| |
CH3 CH3
|
Br
```

### Step 3: Identify the Longest Carbon Chain
In this case, the longest carbon chain includes the central carbon and the two ethyl groups, resulting in a total of 5 carbon atoms.

### Step 4: Number the Carbon Chain
We will number the carbon chain starting from the end closest to the bromine substituent. The numbering is as follows:
1. The carbon with the bromine is at position 1.
2. The two ethyl groups are on the second and third carbons.

### Step 5: Assign the IUPAC Name
- The longest chain contains 5 carbons, which corresponds to "pentane."
- The bromine is located on the first carbon, so we denote this as "1-bromo."
- The two ethyl groups are at the second and third positions, which we denote as "diethyl."

Putting it all together, the correct IUPAC name for diethylbromomethane is **1-bromo-2,2-diethylpentane**.

### Final Answer
**1-bromo-2,2-diethylpentane**

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