When naming with IUPAC, which of this is more important than the other?

I have a halogen, an alcohol, an ether, an alkyne, an alkene and a carboxylic group (COOH)


I have all of these in a compound but I have no idea which would go first when naming the whole compound, any ideas?

When naming with IUPAC, which of this is more important than the other?
When you have several functional groups, the suffix belongs to the most reactive group, which is carboxylic group in your case. All others are prefixes. Prefixes are done in alphabetical order. So chloro or iodo etc. for halogens, hydroxyl for alcohol, and oxo for ether.





Alkyne and alkene don't have prefixes so you need to name it right before your suffix and after your name of the longest chain with the lowest possible number coming first.


example: oct-3-en-4-ynoic acid.


NOT oct-4-yn-3-enoic acid.





where -oic acid indicates your carboxylic acid, which is numbered as 1 since it will always be at the end of your molecule.





It's yucky to name stuff like that. Remember to name your longest carbon chain that contains all functional groups starting from the most reactive group (carboxylic acid)





There's a nice list of order of which functional group should be the suffix in the link on the bottom of the page. Sadly, it should be memorized :-/
Reply:I know that you're supposed to go in alphabetical order, but I'm not so sure about your alkenes and alkynes.


I mean, you total parent molecule is going to be called (number,prefix)yne, but I'm not sure how you would toss in the double bond. =/

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