Chemical Reaction

12/16/11 - Cyclopentadiene and Maleic anhydride

   This little snippet of a reaction was taken from an old exam for the course that I am studying for right now.  It involves a diels alder reaction between a cyclopentadiene and Maleic anhydride.  Here the diene is the cyclopentadiene (this molecule goes through diels alder reactions with itself so it is necessary to heat it above 160*C to reverse the reaction) and the dienophile as the Maleic anhydride.  This is the first step where the reaction goes as a 4π+2π endo reaction as a pericyclic reaction.  Then the second step will remove the diester as it also reduces the C=O into alcohols.  Then the final step involves turning the alkene into a 1,2-diiodine when the alkene gets halogenated, and then intramolecularly the alcohol attaches to the other point of halogenation.

Newer Post

Older Post

Paul Crichton. Powered by Blogger.

Popular Posts


I found myself blogging way too much in procrastination, so I felt it in me to create this blog to combine both my love for chemistry and my great skill of wasting time. I feel that scientific knowledge should follow along what wikipedia is producing; an open, free form for anyone to access, and I hope that this blog will bring this knowledge out to anyone who wishes to access it.

If anyone wishes to make a correction in any of my posts, or if they would like something more formally cited, please leave a message in the comments on that post and I will be more than happy to change it.