IUPAC Nomenclature: 2-Oxo-cyclopentanitrile or 2-Cyano-cyclopentanone?

In summary, the correct name for the compound is 2-cyano-cyclopentanone, as the priority of the CN group is higher than the ketone group. However, according to IUPAC, a chemical name is acceptable as long as it is unambiguous, so either name could be used in practice. The textbook may be incorrect in this case.
  • #1
Krushnaraj Pandya
Gold Member
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Homework Statement


Which name is more correct, 2-oxo-cyclopentanitrile or 2-cyano-cyclopentanone

2. The attempt at a solution
The priority of CN group is higher than ketone, so the first name should be correct but the second name is mentioned in my textbook
 
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  • #3
TeethWhitener said:
Your book is wrong:
https://pubchem.ncbi.nlm.nih.gov/compound/98930
However, IUPAC also says that a chemical name is acceptable as long as it's unambiguous, so either one would work in practice.
Thank you :D
 

FAQ: IUPAC Nomenclature: 2-Oxo-cyclopentanitrile or 2-Cyano-cyclopentanone?

1. What is IUPAC nomenclature?

IUPAC nomenclature is the system of rules and guidelines used to name chemical compounds. It is developed and maintained by the International Union of Pure and Applied Chemistry (IUPAC) to ensure consistency and accuracy in the naming of chemicals.

2. Why is IUPAC nomenclature important?

IUPAC nomenclature is important because it allows scientists and researchers from different countries and disciplines to communicate effectively about chemical compounds. It also ensures that compounds have unique and unambiguous names, which is crucial for accurate reporting and understanding of scientific information.

3. How does IUPAC nomenclature work?

IUPAC nomenclature follows a set of rules and guidelines that consider the structure and functional groups of a compound. The name is typically made up of different prefixes, suffixes, and infixes that indicate the type and number of atoms and bonds present in the compound.

4. What are some common mistakes when using IUPAC nomenclature?

Some common mistakes when using IUPAC nomenclature include incorrect placement of prefixes, not including all functional groups in the name, and using incorrect suffixes for the type of compound. It is important to carefully follow the rules and double-check the name to avoid these mistakes.

5. Are there any exceptions to IUPAC nomenclature rules?

Yes, there are some exceptions to IUPAC nomenclature rules, especially for complex or naturally occurring compounds. In these cases, the name may be based on historical or common usage rather than following the strict IUPAC guidelines. It is important to be aware of these exceptions and understand the reasoning behind them.

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