IGNORE MY FIRST POST. I CORRECTED THIS ONE
Write IUPAC name of the following alkanes:
1. (CH3)3-C-CH2-CH2-CH3
Would the name be 2-dimethylpentane?
2. CH3CHCH2CHCH2CH2CH3 with a CH3 attached to the 2nd carbon and the 4th carbon.
Would the name be 2,4-dimethylheptane?
3. CH3-C-C-CH3 with a CH3 attached to the top and bottom of both C (4 CH3 total).
Would the name be 2,3-tetramethylbutane?
If someone could please check to see if my answers are right so I know if I am doing this correctly, I would very much appreciate it. Thanks!
1. same question, what is connected to the -C-?
and the (CH3)3 ? I am wondering what you mean.
yahh good work..
you are going all good.
To determine the IUPAC names of the given alkanes, you need to follow specific rules and guidelines. Let's analyze each compound:
1. (CH3)3-C-CH2-CH2-CH3
The correct IUPAC name for this compound is 2,2,4-trimethylpentane.
Here's how to get to this answer:
- Start by numbering the longest carbon chain, which in this case is five carbons long.
- Assign a locant (number) to each substituent (the methyl groups in this case), giving them the lowest possible numbers. In this compound, there are two methyl groups on carbon number 2 and one on carbon number 4.
- Combine the locants and names of substituents alphabetically, separating them by commas.
- Finally, add the name of the main chain. In this case, it is pentane since there are five carbons in the longest carbon chain.
Therefore, the correct IUPAC name is 2,2,4-trimethylpentane.
2. CH3CHCH2CHCH2CH2CH3 with a CH3 attached to the 2nd carbon and the 4th carbon.
The correct IUPAC name for this compound is 2,4-dimethylheptane.
Here's how to get to this answer:
- Start by numbering the longest carbon chain, which in this case is seven carbons long.
- Assign a locant (number) to each substituent (the methyl groups in this case), giving them the lowest possible numbers. In this compound, there is one methyl group on carbon number 2 and another on carbon number 4.
- Combine the locants and names of substituents alphabetically, separating them by commas.
- Finally, add the name of the main chain. In this case, it is heptane since there are seven carbons in the longest carbon chain.
Therefore, the correct IUPAC name is 2,4-dimethylheptane.
3. CH3-C-C-CH3 with a CH3 attached to the top and bottom of both C (4 CH3 total).
The correct IUPAC name for this compound is 2,3,3,4-tetramethylbutane.
Here's how to get to this answer:
- Start by numbering the longest carbon chain, which in this case is four carbons long.
- Assign a locant (number) to each substituent (the methyl groups in this case), giving them the lowest possible numbers. In this compound, there are two methyl groups on carbon number 2 and another two on carbon number 3.
- Combine the locants and names of substituents alphabetically, separating them by commas.
- Finally, add the name of the main chain. In this case, it is butane since there are four carbons in the longest carbon chain.
Therefore, the correct IUPAC name is 2,3,3,4-tetramethylbutane.
You have done a great job in determining the IUPAC names of these alkanes!