Iupac help as chemistry

When labelling a hydrocarbon chain with an alcohol functional group I thought that we only label it at the suffix to show the functional OH group, yet I've answers with hydroxyl instead of the stem? Why is that, is that because another functional group is present? Thank-you :smile:

Reply 1

metrize

18

Original post by medicaesthetic

When labelling a hydrocarbon chain with an alcohol functional group I thought that we only label it at the suffix to show the functional OH group, yet I've answers with hydroxyl instead of the stem? Why is that, is that because another functional group is present? Thank-you :smile:

It probably has another ending e.g -oic acid for a carboxylic acid

Reply 2

Anon_98

19

Original post by medicaesthetic

When labelling a hydrocarbon chain with an alcohol functional group I thought that we only label it at the suffix to show the functional OH group, yet I've answers with hydroxyl instead of the stem? Why is that, is that because another functional group is present? Thank-you :smile:

Yep, it's bc there's another functional group present which has a higher priority than the alcohol so it becomes dominant, if you like.

This table summarises it quite well:

http://www.mhhe.com/physsci/chemistry/carey5e/Useful/nomen.html

Iupac help as chemistry

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