1.17 in the organic textbook

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Kira Conde 2O
Posts: 24
Joined: Fri Jul 15, 2016 3:00 am

1.17 in the organic textbook

Postby Kira Conde 2O » Mon Mar 06, 2017 11:14 pm

Hi,

I'm having a problem naming the structure in this problem mostly because of the cross part. There is a section in the book that says the cross represents neopentane or 2,2 dimethyl propane... but in the book, the answer says it is tert butyl. I realize that tert is used for cycloalkanes, but is tert butyle the same as the above names mentioned? If not, how do I go about naming?

Thanks in advance!

Chem_Mod
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Re: 1.17 in the organic textbook

Postby Chem_Mod » Tue Mar 07, 2017 1:21 am

You are only able to use the common name "neo" if there is more than 5 carbons in the molecule. Because the cross only has four carbons, it is called tert-butyl.

Kira Conde 2O
Posts: 24
Joined: Fri Jul 15, 2016 3:00 am

Re: 1.17 in the organic textbook

Postby Kira Conde 2O » Tue Mar 07, 2017 9:51 am

Is this just for cycloalkanes? Why is it that I cannot call it dimethyl propane like the cross is usually called?

Kevin Le 1L
Posts: 17
Joined: Fri Jul 22, 2016 3:00 am

Re: 1.17 in the organic textbook

Postby Kevin Le 1L » Tue Mar 07, 2017 10:13 am

"Neo" is not just limited to cycloalkanes. There should be a pretty good drawing delineating neo alkanes in the book.


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