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Naming Organic Compounds


TKChemistry

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The compound only has 2 substituents to begin with, somewhere you have to work with brackets: ()

 

You can name it such that there are three and still be technically correct.

 

 

How would you name this compound?

 

nomenq1b.gif

 

I have taken a guess and named is: 3,4-ethyl-2-methylhexane

 

But can we name it so that it has two substituents?

 

 

 

 

 

 

Your first name is not correct. Consider that you have given two numbers for the two ethyl groups, but you have not indicated this in the prefixture (i.e. with 'di' to indicate 2 groups).

 

Regarding your next questions, the first step would be to identify another 6-carbon continuous chain in your molecule that only has two substituents, and work from there. As Fuzzwood has said, you will need brackets.*

 

 

*You don't necessarily need brackets for naming it with two substituents if you are familiar with iso / n / tert / sec naming conventions. If you are not, then don't worry about it and continue as above.

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