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Answer to Question #29470 in Organic Chemistry for Mary

Question #29470
I named a branched Alkane "2-butylpropane" and was told that is incorrect naming for a branched alkane. Which would be the correct name? Is it 1-methylhexane or 1-methylpentane
I'm also thinking 2-methylhexane or 2-pentylmethane. This naming is confusing to me! Thank you!
Expert's answer
The steps to naming an organic compound are:

1. Identification of the parent hydrocarbon chain.
This chain must obey the following rules, in order of precedence:
- It should have the maximum number of substituents of the suffix functional group. By suffix, it is meant that the parent functional group should have a suffix, unlike halogen substituents. If more than one functional group is present, the one with highest precedence should be used.
- It should have the maximum number of multiple bonds
- It should have the maximum number of single bonds.
- It should have the maximum length.

2. Identification of the parent functional group, if any, with the highest order of precedence.

3. Identification of the side-chains. Side chains are the carbon chains that are not in the parent chain, but are branched off from it.
CH3
CH3 - CH - CH2-CH2- CH2-CH3
It is 2-methylhexane

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