Questions: What is the IUPAC name of the following compound?

What is the IUPAC name of the following compound?
Transcript text: What is the IUPAC name of the following compound?
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Solution

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Solution Steps

Step 1: Identify the parent chain

The parent chain is a benzene ring.

Step 2: Identify the substituents

The substituents are a methyl group ($CH_3$) and an aldehyde group ($CHO$).

Step 3: Number the carbons

The carbon attached to the aldehyde group is automatically assigned position 1. We number the ring so that the methyl substituent gets the lowest possible number. This places the methyl group at carbon 2.

Step 4: Name the compound

The aldehyde group takes precedence over the methyl group, making it the suffix. Aldehydes attached to benzene rings are named as benzaldehydes. The methyl group is a prefix.

Final Answer: 2-methylbenzaldehyde

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