Danyal124
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Help!!!!! How am I naming this molecule eg I know queatetnary amine structure but I don’t understand how this is named could someone explain
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Hellllpppp
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I can’t see the molecule but for quaternary amines you first identify the longest chain this goes before amine in the name.

So if the longest chain is 4 you have butanaminium (ammonium as it is a a quaternary salt if it was tertiary it would be an amine)

Then for the groups attached to the nitrogen you put N before them like you would normally but a number before them so if 3 methyl groups N,N,N-trimethylbutan-1-aminium

At A-level I’ve only ever really seen tertiary amine so theres not really any reason to panic too much about this

You might wanna check this with your teacher
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Danyal124
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(Original post by Hellllpppp)
I can’t see the molecule but for quaternary amines you first identify the longest chain this goes before amine in the name.

So if the longest chain is 4 you have butanaminium (ammonium as it is a a quaternary salt if it was tertiary it would be an amine)

Then for the groups attached to the nitrogen you put N before them like you would normally but a number before them so if 3 methyl groups N,N,N-trimethylbutan-1-aminium

At A-level I’ve only ever really seen tertiary amine so theres not really any reason to panic too much about this

You might wanna check this with your teacher
ive attached the question below for a better idea of what i meant to ask
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Hellllpppp
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(Original post by Danyal124)
ive attached the question below for a better idea of what i meant to ask
It’s quaternary because there’s 4 groups attached to the N. You can also guess that it’s quaternary because it has a + charge. Because of this charge it becomes a salt with anions such as Bromide ions.

The CH3Br can be used to substitute (swap with the H groups) on NH2, excess CH3Br means multiple substitutions can occur.
(Original post by Danyal124)
Help!!!!! How am I naming this molecule eg I know queatetnary amine structure but I don’t understand how this is named could someone explain
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