Sciencemadness Discussion Board

IUPAC or common name

Syn the Sizer - 5-8-2020 at 04:26

Hey everyone, so I have a question. But first some background. In class our instructors always had us use the IUPAC name for most reagents, of course some common names are prefered by IUPAC like toluene instead of methyl benzene.

However even the short chain acids except formic and acetic, they prefered us to use the IUPAC name like propanoic acid, butanoic acid and pentanoic acid. Us that becoming more common in industry? Most places including here I see the common name used for everything under haxanoic acid.

This may be more suited in the O-Chem section since I am only talking about IUPAC Organic naming conventions. But it has nothing specifically to do with reactions so maybe even more fitting in tue Beginnings section. Mods if you feel it should be move, I am apologize.

dawt - 5-8-2020 at 05:05

Well, as food chemists most of my colleagues refer to even the longer chain carboxylic acids by their common names rather than IUPAC. With vitamins it appears to depend on the subject - when we're discussing chemistry we'll say tocopherol but when discussing nutrition we'll say vitamin E.

Honestly, I don't think it's something to worry about. They're synonyms and the people you'll be discussing this stuff with usually understand both.

Syn the Sizer - 5-8-2020 at 05:24

Sounds good, I just wasn't sure if there was a convention in the field or not. I prefer the IUPAC names myself and that's what I instantly use.

Thanks

karlos³ - 5-8-2020 at 15:20

IUPAC is only practical up to a certain complexicity, above the common name or abbreviations in place of a common name if none exist, like for some exotic things.
If it is important, the full name should of course be stated at least once when writing a document about it.
But on the other hand, it is beneficial for the ease of writing if a good abbreviation is common, and if not, like with novel compounds, one should invent one, but thoughtful.
Among people who are well known with the overall topic on such things, an abbreviation will quickly become the common name.
For example, you can't always write 6-methyl-2-(2´-naphthyl)morpholine throughout a paper, so we invented the name 6-MNMo based on closely related compound for it.

Syn the Sizer - 6-8-2020 at 11:35

I understand, like Chloroquine instead of (RS)-N'-(7-chloroquinolin-4-yl)-N,N-diethyl-pentane-1,4-diamine

Tsjerk - 6-8-2020 at 11:51

There are even common names in IUPAC, like aconitane.

Edit: And chloroquinolin of course...

[Edited on 6-8-2020 by Tsjerk]

Syn the Sizer - 6-8-2020 at 14:40

Yes, there are prefered IUPAC names like benzaldehyde and systematic IUPAC names like benzenecarbaldehyde.

Fyndium - 6-8-2020 at 23:49

I usually prefer the simplest common name form that distinguishes it. One of the more annoying ways is to use formula names which can be very inconvenient, especially anything that's longer than few groups. The endless C:s and H:s just make life more difficult.

B(a)P - 7-8-2020 at 01:54

For work any documentation we prepare has the IUPAC name first then we define it with an acronym or common name to be used in the document from then on.