Question

Phenetole is

• A. Ethoxybenzene
• B. Methoxyethane
• C. Methoxybenzene
• D. 1-Methoxypropane
• E. 2-Methoxypropane

Hint:

Common names: C\(_6\)H\(_5\)OCH\(_3\) is anisole, C\(_6\)H\(_5\)OC\(_2\)H\(_5\) is phenetole.

Answer 1

The Correct Option is A

Step 1: Understanding the Nomenclature:
The question asks for the systematic (IUPAC) or common name corresponding to "Phenetole". This is a test of knowledge of common names for specific organic compounds, particularly ethers.
Step 2: Identifying the Structure:
Phenetole is the common name for an ether consisting of an ethyl group (-CH\(_{2}\)CH\(_{3}\)) and a phenyl group (-C\(_{6}\)H\(_{5}\)) joined by an oxygen atom.
The structure is C\(_{6}\)H\(_{5}\)-O-CH\(_{2}\)CH\(_{3}\).
In the IUPAC system, ethers are named as alkoxyalkanes (or alkoxyarenes). The larger group is considered the parent chain/ring, and the smaller group with the oxygen is named as an alkoxy substituent.
In this case, the benzene ring is the larger group (parent). The -O-CH\(_{2}\)CH\(_{3}\) group is named "ethoxy".
Therefore, the IUPAC name for Phenetole is Ethoxybenzene.
Let's check the other options:
- (C) Methoxybenzene (C\(_{6}\)H\(_{5}\)-O-CH\(_{3}\)) is commonly known as Anisole.
- The other options are aliphatic ethers.
Step 3: Final Answer:
Phenetole is the common name for ethoxybenzene. This corresponds to option (A).