Exam 16: Conjugated Pi Systems and Pericyclic Reactions

Predict the product for the following Claisen rearrangement and provide the curved arrow mechanism for formation of the product.

Which of the following compounds has the longest $\lambda$ _max?

Which of the following is most useful to study conjugation in organic compounds?

Which of the following best describes the stereochemistry of ring closure and the product for the following reaction?

Predict the product for the following Diels-Alder reaction.

Identify the pericyclic reaction in which one sigma bond is formed and one pi bond is broken.

Predict the product for the following electrocyclic reaction.

Provide the structure for (1E,3Z)-1-methoxy-2-methyl-1,3-pentadiene.

Predict the product for the following electrocyclic reaction.

Predict the possible products for the following reaction and provide a curved arrow mechanism for the formation of these products.

Predict the product for the following reaction.

Predict the major product for the following reaction.

Which diene and dienophile would react to give the following Diels-Alder product?

Identify the two types of light-sensitive cells that function as photoreceptors.

Dienes with $\pi$ bonds separated by two or more σ bonds are classified as ______.

Classify the following compounds as having cumulated, conjugated or isolated double bonds?

Provide the structure for (E)-1,3-pentadiene.

Identify the conjugated diene(s). A. 4-methyl-1,3-heptadiene B. 3-methyl-1,5-heptadiene C. 2-methyl-2,4-heptadiene D. 4-methyl-1,4-heptadiene E. 5-methyl-2,3-heptadiene

What is the IUPAC name for the following compound?

Which of the following compounds is an isolated diene?