In a real-life scenario, a chemist discovers a compound with the formula $CH_3 CH_2 CH(CH_3)CH_2 CH_2 OH$. What is the correct IUPAC name for this compound?
3-methylpentan-1-ol
To determine the correct IUPAC name for the compound with the formula CH_3CH_2CH(CH_3)CH_2CH_2OH, we need to follow the rules for naming organic compounds systematically.
- Identify the longest carbon chain that contains the highest-priority functional group. In this case, the alcohol (-OH) group is the highest-priority functional group, and the longest carbon chain containing this group has six carbons. Therefore, the base name of the compound will be "hexanol."
- Number the carbon chain such that the substituents and functional group get the lowest possible numbers. Begin numbering from the end closest to the -OH group. This results in the following numbering:
1 — OH at carbon 1
3 — Methyl group at carbon 3 - Consider all substituents. There is a methyl group (CH₃) at the third carbon.
- Assemble the name by placing the substituents in alphabetical order, followed by the base name. Combine these with the correct locants (numbers indicating their positions on the main carbon chain). Consequently, the name of the compound is "3-methylpentan-1-ol."
Our analysis shows that the correct systematic (IUPAC) name for the compound CH_3CH_2CH(CH_3)CH_2CH_2OH is "3-methylpentan-1-ol". Therefore, the correct answer is the option 3-methylpentan-1-ol," which matches with the given correct answer.
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