Which of the following is the correct IUPAC name for the compound with the struc

Practice Questions

Q1
Which of the following is the correct IUPAC name for the compound with the structure CH3-CH2-CH(CH3)-OH?
  1. 2-Methylpropan-1-ol
  2. 2-Methylbutan-1-ol
  3. 3-Methylbutan-1-ol
  4. 1-Methylbutan-2-ol

Questions & Step-by-Step Solutions

Which of the following is the correct IUPAC name for the compound with the structure CH3-CH2-CH(CH3)-OH?
  • Step 1: Identify the longest carbon chain in the compound. Count the number of carbon atoms in the chain.
  • Step 2: In the structure CH3-CH2-CH(CH3)-OH, the longest chain has 4 carbon atoms.
  • Step 3: Determine the functional group present. The -OH group indicates that this is an alcohol.
  • Step 4: Number the carbon chain starting from the end closest to the -OH group. This gives the -OH group the lowest possible number.
  • Step 5: The -OH group is on carbon 1, and the longest chain is 4 carbons long, so it is a butanol.
  • Step 6: Identify any substituents on the main chain. There is a methyl group (CH3) on carbon 3.
  • Step 7: Combine the information: The compound is 3-Methylbutan-1-ol.
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