What is the IUPAC name for the compound with the structure CH≡C-CH2-CH3?
Practice Questions
1 question
Q1
What is the IUPAC name for the compound with the structure CH≡C-CH2-CH3?
1-butyne
2-butyne
1-pentyne
3-butyne
The compound is 1-butyne, as the triple bond is between the first and second carbon.
Questions & Step-by-step Solutions
1 item
Q
Q: What is the IUPAC name for the compound with the structure CH≡C-CH2-CH3?
Solution: The compound is 1-butyne, as the triple bond is between the first and second carbon.
Steps: 6
Step 1: Identify the longest carbon chain in the compound. The structure CH≡C-CH2-CH3 has four carbon atoms in a row.
Step 2: Count the number of carbon atoms in the longest chain. There are 4 carbon atoms, so the base name is 'butane'.
Step 3: Determine the type of bond present. The structure has a triple bond (≡) between the first and second carbon atoms.
Step 4: Since there is a triple bond, we change 'butane' to 'butyne'.
Step 5: Number the carbon chain from the end closest to the triple bond. The triple bond is between the 1st and 2nd carbon, so we start numbering from the left.
Step 6: Since the triple bond starts at the first carbon, we name the compound '1-butyne'.
