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Topic: resonance or hyperconjugation in cycloalkane intermediates  (Read 4556 times)

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Offline SheffieldWednesday4ever

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resonance or hyperconjugation in cycloalkane intermediates
« on: October 10, 2009, 09:47:48 PM »
Hi everybody,

I know that in a tolouene molecule, that the Hydrogen attached to the functional group, methyl, comes off, and a single electron is left on the carbon group of methyl forming a radical. Does resonance from the double bond help stabilize the structure? (one of the electrons from the double bond in the benzene flows to help form a double bond?) or does hyperconjugation of neighboring C-H orbitals help stabilize it. Or perhaps both.

This would really help clarify many problems i'm dealing with.

Thanks for reading

Offline KritikalMass

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Re: resonance or hyperconjugation in cycloalkane intermediates
« Reply #1 on: October 10, 2009, 11:37:23 PM »
It's not both so it is one or the other. Bottom of the page should answer your question.

http://www.cem.msu.edu/~reusch/VirtualText/funcrx1.htm

Offline KritikalMass

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Re: resonance or hyperconjugation in cycloalkane intermediates
« Reply #2 on: October 10, 2009, 11:45:36 PM »
Here is another example of the difference between the two. Hope it helps!

http://orgo.curvedarrow.com/punbb/viewtopic.php?pid=337#p337

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