Questions: Write the IUPAC names for the following two structures:

Write the IUPAC names for the following two structures:
Transcript text: Write the IUPAC names for the following two structures:
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Solution

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Solution Steps

Step 1: Identify the functional groups and parent chain
  • The first structure has a benzene ring with a ketone group (carbonyl group) attached to it, and a methyl group attached to the carbon adjacent to the carbonyl group.
  • The second structure has a benzene ring with a ketone group (carbonyl group) attached to it, and an isopropyl group attached to the carbon adjacent to the carbonyl group.
Step 2: Number the carbon atoms in the parent chain
  • For the first structure, the carbonyl group is given the highest priority, so it is numbered as carbon 1. The methyl group is on carbon 2.
  • For the second structure, the carbonyl group is given the highest priority, so it is numbered as carbon 1. The isopropyl group is on carbon 2.
Step 3: Name the substituents and the parent compound
  • For the first structure, the parent compound is a benzene ring with a ketone group, which is named "acetophenone." The methyl group on carbon 2 makes it "2-methylacetophenone."
  • For the second structure, the parent compound is a benzene ring with a ketone group, which is named "acetophenone." The isopropyl group on carbon 2 makes it "2-isopropylacetophenone."

Final Answer

  1. The IUPAC name for the first structure is 2-methylacetophenone.
  2. The IUPAC name for the second structure is 2-isopropylacetophenone.
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