16. Conjugated Systems

Predict the products of the following reactions.

(d) furan + trans-1,2-dicyanoethylene

Predict the products of the following proposed Diels–Alder reactions.

(c)

Predict the products of the following reactions.

(i)

Recall (Section 16-10) that two positions of anthracene sometimes react more like polyenes than like aromatic compounds.

b. The Diels–Alder reaction of anthracene with maleic anhydride is a common organic lab experiment. Predict the product of this Diels–Alder reaction.

Predict the products of the following Diels–Alder reactions.

(a)

(b)

Predict the products of the following proposed Diels–Alder reactions. Include stereochemistry where appropriate.

(a)

(b)

(c)

What are the products of the following reactions?

a.