Alkyl and Aryl Carbanions

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Kimberly Wagas 1H
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Joined: Fri Sep 25, 2015 3:00 am

Alkyl and Aryl Carbanions

Postby Kimberly Wagas 1H » Mon Feb 29, 2016 10:01 am

What is the difference between alkyl carbanions and aryl carbanions?
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Anurag Bajjuri 1H
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Re: Alkyl and Aryl Carbanions

Postby Anurag Bajjuri 1H » Mon Feb 29, 2016 11:29 am

Aryl carbanions are aromatic compounds (part of carbons having sigma bonds and delocalized pi bonds forming a ring) and have a -1 charge whereas Alkyl carbanions are non aromatic compounds and have a +1 charge.
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Joyce Zhang 2D
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Re: Alkyl and Aryl Carbanions

Postby Joyce Zhang 2D » Mon Feb 27, 2017 9:15 pm

I dont understand though, on page 147 of introduction to organic chem the example for alkyl carbanions has a positive charge. why is it that one has a positive charge and the other a negative?? Thanks!
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Joyce Zhang 2D
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Re: Alkyl and Aryl Carbanions

Postby Joyce Zhang 2D » Mon Feb 27, 2017 9:19 pm

Also a difference is that alkyl carbanions are sp3 hybridized, and aryl carbanions are sp2 hybridized.
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