MendelSet works best with JavaScript enabled. Please enable JavaScript.
If you are using NoScript or another JavaScript blocker, please add MendelSet.com to your whitelist.
Retro Diels-Alder: show a combination of diene and dienophile that would result in each Diels-Alder adduct.
Since chair forms can be cumbersome to deal with, always convert them to plain "overhead view" structures before doing the problem.
When in doubt, use numbering.
