What is the IUPAC name for the compound with the structure CH3-CH(CH3)-C(CH3)2-C

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Question: What is the IUPAC name for the compound with the structure CH3-CH(CH3)-C(CH3)2-CH2-CH3?

Options:

Correct Answer: 3,3-Dimethylpentane

Solution:

The longest chain has 5 carbons, with two methyl groups on the third carbon, so the name is 3,3-Dimethylpentane.

What is the IUPAC name for the compound with the structure CH3-CH(CH3)-C(CH3)2-CH2-CH3?

What is the IUPAC name for the compound with the structure CH3-CH(CH3)-C(CH3)2-CH2-CH3?

Step 1: Identify the longest continuous chain of carbon atoms in the structure. Count the number of carbon atoms in this chain.
Step 2: In the given structure, the longest chain has 5 carbon atoms, which is called 'pentane'.
Step 3: Look for any branches (methyl groups) attached to the main chain. In this case, there are two methyl groups attached to the third carbon.
Step 4: Since there are two methyl groups on the same carbon, we use the prefix 'di-' to indicate this. Therefore, we write '3,3-Dimethyl' to show the position and number of the methyl groups.
Step 5: Combine the information from Steps 2 and 4 to form the complete IUPAC name: '3,3-Dimethylpentane'.

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