Exam 8: Alkenes: Structure and Preparation Via Elimination Reactions

How would you change the following reaction conditions to favor an E1 mechanism?

Based upon the following energy diagram, is this reaction an E1 or an E2 elimination?

Draw the mechanism and product for the following elimination.

What is (are) the most likely product(s) for the following reaction?

Draw the major product of the following reaction.

Viridenomycin, shown below, is a polyene antibiotic that displays anti-tumor activity. Its structural complexity and chemical instability have made it a challenging target for organic chemists to synthesize. Ignoring the benzene ring, circle any trisubstituted alkene(s), and put a box around any Z alkene(s).

Draw the mechanism and product for the following elimination.

Draw the major product of the following reaction.

By what mechanism is the following reaction likely to occur?

Which of the following would be the best base for performing the following elimination?

What is (are) the most likely product(s) for the following reaction?

Draw an energy diagram for the following reaction, assuming that it is exothermic.

Which of the following is the major product of the following elimination?

Draw the structure of 2,3-dimethyl-1-pentene.

Which of the following is the major product of the following elimination?

Show the mechanism for the following elimination, assuming that it is a concerted reaction.

Will the following alcohol undergo rearrangement during a dehydration reaction?

What is (are) the most likely product(s) for the following reaction?

Draw the Z isomer of 3,4-dimethyl-3-hexene.

Drawn below is the structure of Singulair® (montelukast), a medication used to manage athsma. What is the degree of substitution of the alkene of Singulair®?