Question

which is an example of an ether? question 12 (10 points) what is the iupac name of the compound below?

Explanation:

Step1: Recall ether structure

Ether has the general formula $R - O - R'$, where $R$ and $R'$ are alkyl or aryl groups.

Step2: Analyze first structure

The first structure is a ketone ($H_3C - CH_2 - C(=O)-CH_3$), not an ether.

Step3: Analyze second structure

The second structure is an alcohol ($H_3C - C(H)(OH)-C(H)(CH_3)-CH_3$), not an ether.

Step4: Analyze third structure

The third structure is an ester ($CH_3 - C(=O)-O - CH_2 - CH_3$), not an ether.

Step5: Analyze fourth structure

The fourth structure is a cyclic ether (tetrahydrofuran), which has the $R - O - R'$ structure (in a cyclic form).

Step6: Analyze IUPAC - naming

For the second - part question, number the carbon atoms in the cyclohexane ring. The methyl group is on carbon - 2, and the hydroxyl groups are on carbon - 1 and carbon - 3. So the IUPAC name is 2 - methyl - 1,3 - cyclohexanediol.

Answer:

The example of an ether is the fourth structure.
2 - methyl - 1,3 - cyclohexanediol