How to pronounce“dienophiles”in English

First we’ll focus on alkene dienophiles.

But sometimes, we’re not only focusing on dienes or dienophiles to figure out stereoselectivity.

We may see situations where both the diene and dienophile have groups that wind up on chiral carbons in the product.

In these Diels-Alder reactions, the alkyne dienophile groups end up on a double bond and so they aren’t cis or trans.