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Topic: Which structure is most stable of the C4H8O isomer shown.  (Read 10046 times)

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Offline NewtoAtoms

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Which structure is most stable of the C4H8O isomer shown.
« on: February 22, 2009, 08:07:05 PM »
Which structure is the most stable of the C4H8O isomers shown.

a. 1
b. 2
c. 3
d. 4

Can anyone help me with stability.
I would have to conclude after drawing each isomer out, that either 1 or 4 is most stable, however can anyone give me some guidance.

Thank you

New to atoms.
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Offline nj_bartel

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Re: Which structure is most stable of the C4H8O isomer shown.
« Reply #1 on: February 22, 2009, 10:15:47 PM »
What reasoning did you use?  I'm not sure why you would choose 1 over 2.  At any rate, you should read this.

http://en.wikipedia.org/wiki/Keto-enol_tautomerism
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Offline azmanam

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Re: Which structure is most stable of the C4H8O isomer shown.
« Reply #2 on: February 23, 2009, 06:47:08 AM »
there are at least three more constitutional isomers you're missing.   I think the most stable is in the list you've drawn, but fyi there are at least 3 more.
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Offline alexjaco

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Re: Which structure is most stable of the C4H8O isomer shown.
« Reply #3 on: February 23, 2009, 09:07:09 AM »
Enols are rarely the most stable isomer of an aldehyde or ketone
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