Alcohol 2-methyl-2-butanol  [ENDORSED]

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Isabel Gutierrez 2G
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Joined: Wed Sep 21, 2016 2:58 pm

Alcohol 2-methyl-2-butanol

Postby Isabel Gutierrez 2G » Fri Mar 10, 2017 11:52 pm

I understand that a tertiary alcohol means the functional group -OH is attached to a tertiary carbon atom, however I am confused why 2-methyl-2-butanol is classified as a tertiary alcohol. Doesn't "2-butanol" indicate that the functional group is attached to the secondary carbon atom?

Liam Giffin 2B
Posts: 34
Joined: Fri Jul 22, 2016 3:00 am
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Re: Alcohol 2-methyl-2-butanol  [ENDORSED]

Postby Liam Giffin 2B » Sat Mar 11, 2017 2:16 pm

The 2-butanol indicates that the functional group is attached to the second carbon atom, but the second carbon atom is different from the secondary carbon atom. A secondary carbon atom is bonded to two other carbon atoms and a tertiary carbon atom is bonded to 3 other carbon atoms. The second carbon atom of 2-methyl-2-butanol is bonded to 3 other carbon atoms and as such is a tertiary carbon atom.


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