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Topic: Order of exothermicity  (Read 5138 times)

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Offline a confused chiral girl

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Order of exothermicity
« on: May 15, 2007, 08:44:04 PM »
Hi,

I am wondering which one is the most exothermic and which one is the least exothermic. I know that the least stable alkene would undergo the most exothermic hydrogenation, and the most stable alkene will undergo the least exothermic reaction. So, I know that #1 is the most exothermic because it is least stable since it is attached to a primary carbon.

I have trouble determining whether #2 or #2 is more exothermic.

thank you!

Offline Yggdrasil

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Re: Order of exothermicity
« Reply #1 on: May 16, 2007, 01:10:44 AM »
Because of sterics, cis-alkenes are slightly less stable than trans-alkenes.

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