Hey,
With a Diels-Alder reaction, I know that a dieneophile and a diene combine to make rings. The what was diene part of the product has a double bond now in between the old double bonds of the reactant.
So I am trying to figure out what the two reactants are in this reaction, but I am having trouble!!
My problem is that I know where the two double bonds of the diene were on the reactant, because they would just be on either side of the double bond in the product. But then I can't figure out a diene that would work with that to form the product.
I guess my question is, the double bond of the product of a Diels-Alder reaction is ALWAYS in the middle of where the two double bonds were in the diene reactant, right? Are there any tricks to the reaction that I need to exploit?
I'll attach a picture to what I've got so far (I know the reactants are not right, but that's what I could come up with. I am mostly just including the pic. so that you can see the desired product) and here's a link to a summary of the reaction:
http://en.wikipedia.org/wiki/Diels%E2%80%93Alder_reaction