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I don't understand question 6, although I took notes and the professor mentioned an explanation in class.

Can someone please help using easier terms?

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    $\begingroup$ I took the liberty to change the title of your question. Please note that the reaction is named after Otto Diels and Kurt Alder. There's no 's in here. $\endgroup$ – Klaus-Dieter Warzecha Mar 13 '14 at 9:01
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a) The compound can rotate into a trans configuration that is not suitable for Diels Alder

b) The compound is locked into a cis configuration that is favorable. Furthermore, a carbon group is slightly electron donating

c) The compound has an electron withdrawing group.

d) What compound is that? It's compounds labelled b) and c)

Comment: Normal demand Diels Alder is enhanced by an electron withdrawing group in the dienophile and an electron donating group in the diene. Look at reaction mechanism tab (http://en.wikipedia.org/wiki/Diels%E2%80%93Alder_reaction)

I am not sure as to why that is. I have forgotten.

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  • $\begingroup$ Does c) react slower than a) ? $\endgroup$ – laminin May 11 '15 at 21:03

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