Posts Tagged ‘dyotropic’

Buses (and dyotropic rearrangements) always come in threes.

Sunday, June 12th, 2011
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The last two posts have played a game of find the electrons. We saw how the dyotropic rearrangement of ethane borrowed electrons from the C-C bond, and how 1,2,dibromoethane went ionic on us. How about this mixed system, in which a hydrogen and a BH2 swap their positions?

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More is more: the dyotropic rearrangement of 1,2-dibromoethane.

Sunday, June 12th, 2011
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In the previous post,  I discussed what we could learn from ethane by forcing it into a pericyclic dyotropic rearrangement. We saw how it voraciously scavenged two electrons from the  C-C bond to achieve this. What if we give it more electrons? Thus 1,2-dibromoethane undergoing the same reaction.

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Less is more: the dyotropic rearrangement of ethane

Saturday, June 11th, 2011
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In a time when large (molecules) are considered beautiful (or the corollary that beauty must be big), it is good to reflect that small molecules may teach us something as well. Take ethane. Is there anything left which has not been said about it already? Well, consider the reaction below, in which two hydrogen atoms mutually hop from one carbon to the other.

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