Different Naming Systems in Textbooks: IUPAC Standards

[Virogen]

I have encountered different naming systems in textbooks.

Ignoring cis/trans, for example, some textbooks would give the name 2-butene, while others give but-2-ene.

Are they both acceptable? The newer textbook uses the second type of naming, while the older textbook uses the first. Have the IUPAC standards changed?

 

[Borek]

Have the IUPAC standards changed?

More than once. You can always go to their site and consult the newest version of the Blue Book. At the moment (according to http://old.iupac.org/publications/epub/index.html) Blue Book resides on ACDLabs page http://www.acdlabs.com/iupac/nomenclature/.

 

[Virogen]

How odd, the IB program seems to be using the older system...

 

[ZealScience]

Different countries also have different systems. But generally they are both accepted.

 

[LudusRex]

The use of different naming systems in textbooks can be confusing and may lead to discrepancies in understanding among students. However, it is important to note that both naming systems mentioned, 2-butene and but-2-ene, are acceptable according to the IUPAC (International Union of Pure and Applied Chemistry) standards. The IUPAC has set guidelines for the systematic naming of organic compounds, but it also allows for alternative names that are commonly used in older textbooks or in specific fields of study.

The older textbook may be using a more traditional or common name for the compound, while the newer textbook may be using a more systematic name in line with the IUPAC guidelines. It is possible that the IUPAC standards have been updated over time, but both naming systems are still considered acceptable.

As a scientist, it is important to be familiar with both naming systems and understand their relationship to the IUPAC standards. This will allow for clear and accurate communication within the scientific community. It is also important to note that the IUPAC constantly reviews and updates its standards, so it is always beneficial to stay updated on any changes.