Numbering Priority

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Numbering Priority

Postby Cole_Heramb_2E » Fri Mar 17, 2017 1:23 pm

Okay I just wanted to get this straight. When numbering a molecule: Functional groups have priority of course, then comes alkene/alkyne special bonds, then substituents?

Tara Ostad 1H
Posts: 28
Joined: Wed Sep 21, 2016 2:59 pm

Re: Numbering Priority

Postby Tara Ostad 1H » Fri Mar 17, 2017 1:31 pm

Yes, that seems correct. Substituents also get priority from alphabetical order if the numbering is the same from either side.

Dianna Grigorian 1C
Posts: 72
Joined: Wed Sep 21, 2016 2:55 pm

Re: Numbering Priority

Postby Dianna Grigorian 1C » Fri Mar 17, 2017 1:57 pm

Functional groups should always be given priority with numbering, even if there is a lower numerical value that could be used instead.

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