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.