Tert vs neo

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Rachael_1H
Posts: 31
Joined: Fri Sep 25, 2015 3:00 am

Tert vs neo

Postby Rachael_1H » Thu Feb 25, 2016 9:40 pm

Are the prefixes "neo" and "tert" interchangeable? If not, how do you know when to use which?

vanessachin2h
Posts: 10
Joined: Fri Sep 25, 2015 3:00 am

Re: Tert vs neo

Postby vanessachin2h » Thu Feb 25, 2016 10:06 pm

"Tert" is used when a carbon is attached to three other carbons. "Neo" is used when a substituent whose second-to-last carbon of the chain has three methyl groups attached to it.

Chem_Mod
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Re: Tert vs neo

Postby Chem_Mod » Fri Feb 26, 2016 12:37 am

Neo can describe both compounds and substituents while tert- can only describe a substituent.

In a compound, neo means that somewhere there is a carbon with three methyl groups. You can think of it as a cross.

In a substituent, neo means that the far end of the substituent has a cross. Tert- means that the close end (adjacent to the point of attachment) has a cross


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