What is the IUPAC name for the compound CH3-CH2-CH(CH3)-CH2-Br?

Practice Questions

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1-bromo-3-methylbutane
2-bromo-3-methylbutane
3-bromo-2-methylbutane
1-bromo-2-methylbutane

Questions & Step-by-step Solutions

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Q: What is the IUPAC name for the compound CH3-CH2-CH(CH3)-CH2-Br?

Solution: The longest carbon chain has four carbons, and the bromine is on the first carbon when numbering from the end closest to the substituent.

Steps: 7

Step 1: Identify the longest carbon chain in the compound. Count the number of carbon atoms in the chain.
Step 2: The longest chain has 4 carbon atoms, so it is a butane.
Step 3: Identify any substituents (groups attached to the main chain). In this case, there is a bromine (Br) and a methyl (CH3) group.
Step 4: Number the carbon chain starting from the end closest to the substituent. This means starting from the end with the bromine.
Step 5: Assign numbers to each carbon in the chain. The bromine is on carbon 1, and the methyl group is on carbon 2.
Step 6: Combine the names of the substituents with the name of the main chain. The bromine is named as 'bromo' and the methyl group as 'methyl'.
Step 7: Write the IUPAC name by placing the substituents in alphabetical order before the main chain name. The final name is 2-methyl-1-bromobutane.

What is the IUPAC name for the compound CH3-CH2-CH(CH3)-CH2-Br?

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