IUPAC Names of Organic compounds (2)

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Discussion Overview

The discussion revolves around the IUPAC naming of organic compounds, specifically focusing on how to name a given compound according to IUPAC rules. The scope includes homework-related queries and the application of nomenclature rules.

Discussion Character

  • Homework-related, Technical explanation

Main Points Raised

  • Participants inquire about the correct IUPAC name for specific organic compounds, seeking assistance with naming conventions.
  • Some participants suggest selecting the longest carbon chain with the most substituted carbons to determine the correct name.
  • One participant notes that in some cases, the choice of chain does not affect the final name, indicating a potential for multiple valid names.
  • Another participant provides a specific example of a compound name, "3-ethyl-2-methylpentane," and suggests that finding all IUPAC rules in one location can be challenging.
  • Resources such as Google searches and Khan Academy videos are mentioned as potential aids for learning nomenclature rules.

Areas of Agreement / Disagreement

Participants generally agree on the approach to naming compounds but do not reach a consensus on a single definitive resource for IUPAC rules. The discussion reflects varying levels of familiarity with the nomenclature process.

Contextual Notes

Limitations include the absence of specific examples of compounds being named and the potential for ambiguity in naming based on different interpretations of the rules.

CroSinus
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Homework Statement


Name the following compound according to the IUPAC rules:
001b.jpg

Homework Equations

The Attempt at a Solution


001bRJESENJE.jpg


Help me with the answer, please!
​
 

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CroSinus said:

Homework Statement


Name the following compound according to the IUPAC rules:
View attachment 228517​

Homework Equations

The Attempt at a Solution


View attachment 228519

Help me with the answer, please!
​
You select the chain with more no. of substituted carbons. If that gives you more than possible answer, either you apply the other rules (for functional groups if any), or in some cases, it doesn't matter which chain you select. All give the same compound. So, which chain(s) have more no. of substituted carbons?
 
Well, it appears to be the chain number (2), OR (3). Is there a place where I can find all the important rules for naming alkanes in one location?
Thank you for your help.
CroSinus
 
Last edited:
Exactly. And hence, it doesn't matter in this case. It's 3-ethyl-2-methylpentane.
It's hard to find all in one place, though a simple Google search of the IUPAC nomenclature will render you the most important ones. It's better to just learn them as they come across. Still, you can see the Khan Academy videos.
 

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