Question

What is the IUPAC name of \(\text{CH}_{3}\text{-O-CH}_{2}\text{-CH}_{2}\text{-CH}_{3}\)?

• A. 1-Methoxy propane
• B. 3-Propoxy methane
• C. 2-Propoxy methane
• D. 3-Methoxy propane

Hint:

Name the ether as an alkoxy alkane, with the longer carbon chain as the parent.

Answer 1

The Correct Option is A

Step 1: Understanding the Concept
In IUPAC naming an ether is an alkoxy alkane. The longer carbon chain is the parent and the shorter is the alkoxy group.

Step 2: Identify the parts
\(\text{CH}_3\text{-O-CH}_2\text{CH}_2\text{CH}_3\) has a three-carbon chain (propane) and one carbon on the other side of oxygen (methoxy).

Step 3: Number the chain
Number the propane chain from the end bearing the oxygen so the substituent gets the lowest number, which is carbon \(1\).

Step 4: Compare the options
The name is \(1\)-methoxypropane, option (A).

Final Answer:
The compound is 1-methoxypropane. \[ \boxed{\text{(A) }\text{1-Methoxy propane}} \]