Neo- vs. Tert-

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giareyes_2B
Posts: 20
Joined: Wed Sep 21, 2016 2:58 pm

Neo- vs. Tert-

Postby giareyes_2B » Fri Mar 17, 2017 10:22 pm

When naming hydrocarbons, do the prefixes tert- and neo- mean the same thing? I know neo- is (CH3)3C-, but on page 96 of the course reader the part of the structure named tert- resembles the same formula to me. If they are the same, is there a specific time when we should use either?

Kathy Vu 3L
Posts: 24
Joined: Fri Jul 15, 2016 3:00 am

Re: Neo- vs. Tert-

Postby Kathy Vu 3L » Fri Mar 17, 2017 11:04 pm

Tert- just implies that there is a carbon attached to 3 other carbons, it does not necessarily have to be (CH3)3C-.

Kristine_Espinosa_2L
Posts: 16
Joined: Wed Sep 21, 2016 3:00 pm

Re: Neo- vs. Tert-

Postby Kristine_Espinosa_2L » Sat Mar 18, 2017 2:18 am

The way to think of neo is that there are 2 methyl groups apart from the main chain at CH3C-

Benjamin_Oh_3O
Posts: 9
Joined: Wed Sep 21, 2016 2:55 pm

Re: Neo- vs. Tert-

Postby Benjamin_Oh_3O » Sat Mar 18, 2017 2:45 pm

What about iso? I know it is a common name, but in some of the questions, I saw it was used in IUPAC name....

Kristine_Espinosa_2L
Posts: 16
Joined: Wed Sep 21, 2016 3:00 pm

Re: Neo- vs. Tert-

Postby Kristine_Espinosa_2L » Sat Mar 18, 2017 5:21 pm

for iso- it's similar to neo- but think of it as only ONE methyl group apart from the continuous chain connected at -chch3

404639305
Posts: 15
Joined: Fri Sep 25, 2015 3:00 am

Re: Neo- vs. Tert-

Postby 404639305 » Sat Mar 18, 2017 5:57 pm

neo- and tert- are sometimes used in iupac naming just to make things easier, but using just iupac would be correct as well


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