[Krazibo]

Wy is it important to avoid water in diels alder. Can you show me an example with the differences in the products if water is present, and if water isn't.

Thanks.

[discodermolide]

No examples. Why should water be detrimental? As long as the reactants do not react with it it should be ok. Water cannot be compressed therefore you can obtain higher pressures at lower temperatures and increase the volume of activation.

[Krazibo]

If the reactants are 3sulfolene, will it affect the reactions? I'm assuming it would hydrogenated the two oxygens?

How bout if the reactant is dicyclopentadiene?

[discodermolide]

I doubt it will affect these two compounds in any significant way.
Try it and see!

[orgopete]

Wy is it important to avoid water in diels alder. Can you show me an example with the differences in the products if water is present, and if water isn't.

Thanks.

Maleic anhydride is a common Diels-Alder dienophile that can react with water if present.