IUPAC Naming: Troubleshooting Mistakes

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Discussion Overview

The discussion revolves around the IUPAC naming of a specific organic compound, focusing on identifying the correct substituents and their positions. It is a homework-related inquiry involving the application of IUPAC nomenclature rules.

Discussion Character

  • Homework-related

Main Points Raised

  • One participant presents a proposed IUPAC name, "3-ethyl, 6-isopropyl nonane," but expresses uncertainty about the correctness of the positions assigned to the substituents.
  • Another participant suggests that the numbering of the carbon atoms may have been done incorrectly, indicating that 3 and 6 are smaller than 4 and 7.
  • A clarification is made regarding the substituent names, with one participant correcting "3-ethyl" to "3-methyl."
  • There is a reiteration of the proposed name by a participant, indicating a potential confusion in counting the carbon atoms in the structure.

Areas of Agreement / Disagreement

Participants express differing views on the correct naming and numbering of the substituents, indicating that the discussion remains unresolved.

Contextual Notes

The discussion lacks clarity on the structural representation of the compound, which may affect the interpretation of the IUPAC name. There are also unresolved aspects regarding the counting of carbon atoms and the correct identification of substituents.

Manh
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Homework Statement


Give the IUPAC name for the following compound.

Homework Equations

The Attempt at a Solution


upload_2015-9-9_20-37-27.png


However, the 4 and 7 were incorrect in the blanks. I'm not sure what went wrong.
 

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I think it is 3-ethyl, 6-isopropyl nonane

3 & 6 are smaller than 4 & 7
 
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Dr Transport said:
3-ethyl
"3-methyl" you mean?
 
Dr Transport said:
I think it is 3-ethyl, 6-isopropyl nonane
I wonder if you are counting # of C in this order like this:
 

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